56644136 has 16 divisors (see below), whose sum is σ = 112455540. Its totient is φ = 26656000.

The previous prime is 56644123. The next prime is 56644141. The reversal of 56644136 is 63144665.

It can be written as a sum of positive squares in 2 ways, for example, as 56400100 + 244036 = 7510^2 + 494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56644096 and 56644105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208115 + ... + 208386.

Almost surely, 2^56644136 is an apocalyptic number.

It is an amenable number.

56644136 is a deficient number, since it is larger than the sum of its proper divisors (55811404).

56644136 is a wasteful number, since it uses less digits than its factorization.

56644136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416524 (or 416520 counting only the distinct ones).

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

The square root of 56644136 is about 7526.2298662743. The cubic root of 56644136 is about 384.0475382408.

The spelling of 56644136 in words is "fifty-six million, six hundred forty-four thousand, one hundred thirty-six".