56491636 has 36 divisors (see below), whose sum is σ = 106478400. Its totient is φ = 26148096.

The previous prime is 56491627. The next prime is 56491651. The reversal of 56491636 is 63619465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582340 + ... + 582436.

Almost surely, 2^56491636 is an apocalyptic number.

It is an amenable number.

56491636 is a deficient number, since it is larger than the sum of its proper divisors (49986764).

56491636 is a wasteful number, since it uses less digits than its factorization.

56491636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 197 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 56491636 is about 7516.0918035905. The cubic root of 56491636 is about 383.7025782170.

The spelling of 56491636 in words is "fifty-six million, four hundred ninety-one thousand, six hundred thirty-six".