56576564 has 48 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 24528000.

The previous prime is 56576551. The next prime is 56576591. The reversal of 56576564 is 46567565.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 128657 + ... + 129095.

It is an arithmetic number, because the mean of its divisors is an integer number (2356200).

Almost surely, 2^56576564 is an apocalyptic number.

It is an amenable number.

56576564 is a deficient number, since it is larger than the sum of its proper divisors (56521036).

56576564 is a wasteful number, since it uses less digits than its factorization.

56576564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 582 counting only the distinct ones).

The product of its digits is 756000, while the sum is 44.

The square root of 56576564 is about 7521.7394264891. The cubic root of 56576564 is about 383.8947646380.

It can be divided in two parts, 5657 and 6564, that added together give a palindrome (12221).

The spelling of 56576564 in words is "fifty-six million, five hundred seventy-six thousand, five hundred sixty-four".