57 (number)
Encyclopedia : 5 : 57 : 57N : 57 (number)
57 (fifty-seven) is the natural number following 56 and preceding 58.
| Cardinal | 57 fifty-seven |
| Ordinal | 57th fifty-seventh |
| Factorization | [3\cdot 19] |
| Roman numeral | LVII |
| Binary | 111001 |
| Hexadecimal | 39 |
In mathematics
57 is a 20-gonal number. It is a Leyland number since 25 + 52 = 57.
57 is a repdigit in base 7 (111).
See also 57-cell.
In science
- The atomic number of lanthanum, the first of the lanthanides
Astronomy
- Messier object M57, a magnitude 9.5 planetary nebula in the constellation Lyra, also known as the Ring Nebula
- The New General Catalogue [object] NGC 57, an elliptical galaxy in the constellation Pisces
- The Saros [number] of the solar eclipse series which began on -1161 June 17 and ended on 137 August 4. The duration of Saros series 57 was 1298.1 years, and it contained 73 solar eclipses.
- The Saros [number] of the lunar eclipse series which began on -823 April 16 and ended on 475 June 5. The duration of Saros series 57 was 1298.1 years, and it contained 73 lunar eclipses.
In other fields
Fifty-seven is also:
- The year AD 57, 57 BC, or 1957.
- The code for international direct dial phone calls to Colombia.
- The designation of Interstate 57, a freeway that runs from Missouri to Illinois.
- Heinz 57 is a brand of steak sauce, and the number of varieties of foods claimed by the H.J. Heinz Company.
- In the title of the movie Passenger 57, starring Wesley Snipes.
- "Incident on 57th Street" is a song by Bruce Springsteen and the E Street Band, from their 1973 album, "The Wild, the Innocent and the E Street Shuffle".
- "57 Channels (and Nothin' On)" is another song by Bruce Springsteen, from his 1992 album Human Touch.
- 57 is also the name of a song by Biffy Clyro on their debut album, Blackened Sky
- Agent 57 is the name of the master of disguise in the television series Dangermouse.
- The 57th Overlanders is a fictional brigade from the cancelled Joss Whedon television show, "Firefly".
- C-57D is the number of the featured ship in the movie Forbidden Planet, and is referenced in the movie Serenity as well.
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