56403723 has 12 divisors (see below), whose sum is σ = 79372968. Its totient is φ = 35622720.

The previous prime is 56403707. The next prime is 56403731. The reversal of 56403723 is 32730465.

It is not a de Polignac number, because 56403723 - 2⁴ = 56403707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56403703) 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, 24958 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (6614414).

Almost surely, 2^56403723 is an apocalyptic number.

56403723 is a deficient number, since it is larger than the sum of its proper divisors (22969245).

56403723 is a wasteful number, since it uses less digits than its factorization.

56403723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52122 (or 52103 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 56403723 is about 7510.2412078441. The cubic root of 56403723 is about 383.5034339391.

The spelling of 56403723 in words is "fifty-six million, four hundred three thousand, seven hundred twenty-three".