56725632 has 96 divisors (see below), whose sum is σ = 167354460. Its totient is φ = 18432000.

The previous prime is 56725631. The next prime is 56725633. The reversal of 56725632 is 23652765.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56725631) and next prime (56725633).

It can be written as a sum of positive squares in 2 ways, for example, as 35712576 + 21013056 = 5976^2 + 4584^2 .

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 an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56725631) 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, 46632 + ... + 47832.

Almost surely, 2^56725632 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 56725632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83677230).

56725632 is an abundant number, since it is smaller than the sum of its proper divisors (110628828).

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

56725632 is a wasteful number, since it uses less digits than its factorization.

56725632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1247 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 56725632 is about 7531.6420520362. The cubic root of 56725632 is about 384.2316310840.

The spelling of 56725632 in words is "fifty-six million, seven hundred twenty-five thousand, six hundred thirty-two".