56911964 has 6 divisors (see below), whose sum is σ = 99595944. Its totient is φ = 28455980.

The previous prime is 56911901. The next prime is 56911993. The reversal of 56911964 is 46911965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7113992 + ... + 7113999.

It is an arithmetic number, because the mean of its divisors is an integer number (16599324).

Almost surely, 2^56911964 is an apocalyptic number.

It is an amenable number.

56911964 is a deficient number, since it is larger than the sum of its proper divisors (42683980).

56911964 is a wasteful number, since it uses less digits than its factorization.

56911964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14227995 (or 14227993 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 56911964 is about 7544.0018557792. The cubic root of 56911964 is about 384.6518784941.

Subtracting from 56911964 its reverse (46911965), we obtain a palindrome (9999999).

It can be divided in two parts, 56911 and 964, that added together give a palindrome (57875).

The spelling of 56911964 in words is "fifty-six million, nine hundred eleven thousand, nine hundred sixty-four".