56709564 has 36 divisors (see below), whose sum is σ = 133827624. Its totient is φ = 18690336.

The previous prime is 56709563. The next prime is 56709607. The reversal of 56709564 is 46590765.

56709564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56709563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193402 + ... + 193694.

It is an arithmetic number, because the mean of its divisors is an integer number (3717434).

Almost surely, 2^56709564 is an apocalyptic number.

It is an amenable number.

56709564 is an abundant number, since it is smaller than the sum of its proper divisors (77118060).

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

56709564 is a wasteful number, since it uses less digits than its factorization.

56709564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 56709564 is about 7530.5752768298. The cubic root of 56709564 is about 384.1953487389.

The spelling of 56709564 in words is "fifty-six million, seven hundred nine thousand, five hundred sixty-four".