Number 55 - properties and curiosities

55 (number)

55

Number 55 properties

  • Fibonacci
  • Palindrome
  • Triangular
  • 55 is an odd number.
  • 55 is a palindrome.
  • 55 is triangular and equals T10.
  • 55 is Fibonacci number #10.

Prime factorization

Prime factorization of 55: 5 × 11.

Divisors

Divisor count: 4

1, 5, 11, 55

Factors of 55 are: 1, 5, 11, 55.

Representations

In octal, 55 is represented as 67.

In binary, 55 is represented as 110111.

In hex, 55 is represented as 37.

Roman numeral: LV

Curiosities

  • 55 appears in the Fibonacci sequence, where each number is the sum of the previous two.
  • 55 reads the same from left to right and right to left.

Quick answers

Is 55 prime?
No, 55 is not prime.

What are the factors of 55?
1, 5, 11, 55

What is 55 in binary?
110111