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| Cardinal | fifty-four | ||
| Ordinal | 54th (fifty-fourth) | ||
| Factorization | <math>2\cdot 3^3<math> | ||
| Divisors | 2, 3, 6, 9, 18, 27 | ||
| Roman numeral | L | ||
| Binary | 110110 | ||
| Hexadecimal | 36 | ||
Fifty-four (54) is the natural number following 53 and preceding 55. It is a 19-gonal number and a Harshad number.
Fifty-four is also:
As a year, it can refer to AD 54, 54 BC, or 1954.