56725746 has 64 divisors (see below), whose sum is σ = 142387200. Its totient is φ = 14636160.

The previous prime is 56725709. The next prime is 56725759. The reversal of 56725746 is 64752765.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56725698 and 56725707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91630 + ... + 92246.

It is an arithmetic number, because the mean of its divisors is an integer number (2224800).

Almost surely, 2^56725746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56725746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71193600).

56725746 is an abundant number, since it is smaller than the sum of its proper divisors (85661454).

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

56725746 is a wasteful number, since it uses less digits than its factorization.

56725746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its digits is 352800, while the sum is 42.

The square root of 56725746 is about 7531.6496201032. The cubic root of 56725746 is about 384.2318884772.

The spelling of 56725746 in words is "fifty-six million, seven hundred twenty-five thousand, seven hundred forty-six".