56157807755 has 16 divisors (see below), whose sum is σ = 77181361920. Its totient is φ = 38425741152.

The previous prime is 56157807743. The next prime is 56157807763. The reversal of 56157807755 is 55770875165.

It is a cyclic number.

It is not a de Polignac number, because 56157807755 - 2⁸ = 56157807499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56157807755.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1701545 + ... + 1734234.

It is an arithmetic number, because the mean of its divisors is an integer number (4823835120).

Almost surely, 2^56157807755 is an apocalyptic number.

56157807755 is a deficient number, since it is larger than the sum of its proper divisors (21023554165).

56157807755 is a wasteful number, since it uses less digits than its factorization.

56157807755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436258.

The product of its (nonzero) digits is 10290000, while the sum is 56.

The spelling of 56157807755 in words is "fifty-six billion, one hundred fifty-seven million, eight hundred seven thousand, seven hundred fifty-five".