56536644 has 24 divisors (see below), whose sum is σ = 133281568. Its totient is φ = 18650880.

The previous prime is 56536643. The next prime is 56536651. The reversal of 56536644 is 44663565.

It is a super-2 number, since 2×56536644² = 6392784229565472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56536643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23122 + ... + 25449.

Almost surely, 2^56536644 is an apocalyptic number.

It is an amenable number.

56536644 is an abundant number, since it is smaller than the sum of its proper divisors (76744924).

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

56536644 is a wasteful number, since it uses less digits than its factorization.

56536644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48675 (or 48673 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The square root of 56536644 is about 7519.0853167124. The cubic root of 56536644 is about 383.8044523027.

The spelling of 56536644 in words is "fifty-six million, five hundred thirty-six thousand, six hundred forty-four".