56138632 has 16 divisors (see below), whose sum is σ = 114829200. Its totient is φ = 25517520.

The previous prime is 56138603. The next prime is 56138639. The reversal of 56138632 is 23683165.

It is not an unprimeable number, because it can be changed into a prime (56138639) 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, 318882 + ... + 319057.

It is an arithmetic number, because the mean of its divisors is an integer number (7176825).

Almost surely, 2^56138632 is an apocalyptic number.

It is an amenable number.

56138632 is an abundant number, since it is smaller than the sum of its proper divisors (58690568).

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

56138632 is a wasteful number, since it uses less digits than its factorization.

56138632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637956 (or 637952 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 56138632 is about 7492.5717881112. The cubic root of 56138632 is about 382.9016829129.

It can be divided in two parts, 561 and 38632, that added together give a palindrome (39193).

The spelling of 56138632 in words is "fifty-six million, one hundred thirty-eight thousand, six hundred thirty-two".