56133155 has 16 divisors (see below), whose sum is σ = 72700320. Its totient is φ = 41361408.

The previous prime is 56133139. The next prime is 56133173. The reversal of 56133155 is 55133165.

It is a cyclic number.

It is not a de Polignac number, because 56133155 - 2⁴ = 56133139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49424 + ... + 50546.

It is an arithmetic number, because the mean of its divisors is an integer number (4543770).

Almost surely, 2^56133155 is an apocalyptic number.

56133155 is a deficient number, since it is larger than the sum of its proper divisors (16567165).

56133155 is a wasteful number, since it uses less digits than its factorization.

56133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its digits is 6750, while the sum is 29.

The square root of 56133155 is about 7492.2062838659. The cubic root of 56133155 is about 382.8892302836.

The spelling of 56133155 in words is "fifty-six million, one hundred thirty-three thousand, one hundred fifty-five".