56939688 has 96 divisors (see below), whose sum is σ = 167731200. Its totient is φ = 17345664.

The previous prime is 56939677. The next prime is 56939689. The reversal of 56939688 is 88693965.

It is not an unprimeable number, because it can be changed into a prime (56939689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118633 + ... + 119111.

It is an arithmetic number, because the mean of its divisors is an integer number (1747200).

Almost surely, 2^56939688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56939688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83865600).

56939688 is an abundant number, since it is smaller than the sum of its proper divisors (110791512).

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

56939688 is a wasteful number, since it uses less digits than its factorization.

56939688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 624 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 56939688 is about 7545.8391183486. The cubic root of 56939688 is about 384.7143279147.

The spelling of 56939688 in words is "fifty-six million, nine hundred thirty-nine thousand, six hundred eighty-eight".