56521464 has 96 divisors (see below), whose sum is σ = 155833200. Its totient is φ = 17059840.

The previous prime is 56521453. The next prime is 56521471. The reversal of 56521464 is 46412565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201004 + ... + 201284.

Almost surely, 2^56521464 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 56521464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77916600).

56521464 is an abundant number, since it is smaller than the sum of its proper divisors (99311736).

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

56521464 is a wasteful number, since it uses less digits than its factorization.

56521464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 332 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 56521464 is about 7518.0758176544. The cubic root of 56521464 is about 383.7700989307.

The spelling of 56521464 in words is "fifty-six million, five hundred twenty-one thousand, four hundred sixty-four".