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55 (number)

From Wikipedia, the free encyclopedia
← 54 55 56 →
Cardinalfifty-five
Ordinal55th
(fifty-fifth)
Factorization5 × 11
Divisors1, 5, 11, 55
Greek numeralΝΕ´
Roman numeralLV
Binary1101112
Ternary20013
Senary1316
Octal678
Duodecimal4712
Hexadecimal3716

55 (fifty-five) is the natural number following 54 and preceding 56.

Mathematics

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55 is the tenth Fibonacci number.[1]

Science

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Astronomy

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Music

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Transportation

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  • In the United States, the National Maximum Speed Law prohibited speed limits higher than 55 miles per hour (90 km/h) from 1974 to 1987

Film

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Other uses

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See also

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References

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  1. ^ "Sloane's A000045 : Fibonacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.