56711880 has 64 divisors (see below), whose sum is σ = 189043200. Its totient is φ = 15122880.

The previous prime is 56711873. The next prime is 56711909. The reversal of 56711880 is 8811765.

56711880 is a `hidden beast` number, since 567 + 1 + 18 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 25176 + ... + 27335.

It is an arithmetic number, because the mean of its divisors is an integer number (2953800).

Almost surely, 2^56711880 is an apocalyptic number.

It is an amenable number.

56711880 is an abundant number, since it is smaller than the sum of its proper divisors (132331320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56711880 is a wasteful number, since it uses less digits than its factorization.

56711880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52531 (or 52521 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 56711880 is about 7530.7290483724. The cubic root of 56711880 is about 384.2005788050.

The spelling of 56711880 in words is "fifty-six million, seven hundred eleven thousand, eight hundred eighty".