56613644 has 12 divisors (see below), whose sum is σ = 99143184. Its totient is φ = 28287024.

The previous prime is 56613629. The next prime is 56613647. The reversal of 56613644 is 44631665.

It is not an unprimeable number, because it can be changed into a prime (56613647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849 + ... + 11015.

It is an arithmetic number, because the mean of its divisors is an integer number (8261932).

Almost surely, 2^56613644 is an apocalyptic number.

It is an amenable number.

56613644 is a deficient number, since it is larger than the sum of its proper divisors (42529540).

56613644 is a wasteful number, since it uses less digits than its factorization.

56613644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904 (or 9902 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 56613644 is about 7524.2038781522. The cubic root of 56613644 is about 383.9786138987.

The spelling of 56613644 in words is "fifty-six million, six hundred thirteen thousand, six hundred forty-four".