56621952 has 96 divisors (see below), whose sum is σ = 170099280. Its totient is φ = 18044928.

The previous prime is 56621947. The next prime is 56621953. The reversal of 56621952 is 25912665.

56621952 is a `hidden beast` number, since 566 + 2 + 1 + 95 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56621953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25428 + ... + 27564.

Almost surely, 2^56621952 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 56621952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85049640).

56621952 is an abundant number, since it is smaller than the sum of its proper divisors (113477328).

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

56621952 is a wasteful number, since it uses less digits than its factorization.

56621952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180 (or 2165 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 56621952 is about 7524.7559428861. The cubic root of 56621952 is about 383.9973958157.

The spelling of 56621952 in words is "fifty-six million, six hundred twenty-one thousand, nine hundred fifty-two".