56939136 has 32 divisors (see below), whose sum is σ = 151245600. Its totient is φ = 18979584.

The previous prime is 56939131. The next prime is 56939147. The reversal of 56939136 is 63193965.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (56939131) 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, 73756 + ... + 74523.

It is an arithmetic number, because the mean of its divisors is an integer number (4726425).

Almost surely, 2^56939136 is an apocalyptic number.

It is an amenable number.

56939136 is an abundant number, since it is smaller than the sum of its proper divisors (94306464).

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

56939136 is a wasteful number, since it uses less digits than its factorization.

56939136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148296 (or 148284 counting only the distinct ones).

The product of its digits is 131220, while the sum is 42.

The square root of 56939136 is about 7545.8025418109. The cubic root of 56939136 is about 384.7130847104.

It can be divided in two parts, 56939 and 136, that added together give a palindrome (57075).

The spelling of 56939136 in words is "fifty-six million, nine hundred thirty-nine thousand, one hundred thirty-six".