56861536 has 12 divisors (see below), whose sum is σ = 111946212. Its totient is φ = 28430752.

The previous prime is 56861531. The next prime is 56861551. The reversal of 56861536 is 63516865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56861531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 888430 + ... + 888493.

It is an arithmetic number, because the mean of its divisors is an integer number (9328851).

Almost surely, 2^56861536 is an apocalyptic number.

It is an amenable number.

56861536 is a deficient number, since it is larger than the sum of its proper divisors (55084676).

56861536 is a wasteful number, since it uses less digits than its factorization.

56861536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776933 (or 1776925 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 56861536 is about 7540.6588571557. The cubic root of 56861536 is about 384.5382353894.

The spelling of 56861536 in words is "fifty-six million, eight hundred sixty-one thousand, five hundred thirty-six".