56396403 has 24 divisors (see below), whose sum is σ = 95004000. Its totient is φ = 32224752.

The previous prime is 56396393. The next prime is 56396411. The reversal of 56396403 is 30469365.

56396403 is a `hidden beast` number, since 5 + 6 + 3 + 9 + 640 + 3 = 666.

It is not a de Polignac number, because 56396403 - 2⁵ = 56396371 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56396413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6048 + ... + 12221.

It is an arithmetic number, because the mean of its divisors is an integer number (3958500).

Almost surely, 2^56396403 is an apocalyptic number.

56396403 is a deficient number, since it is larger than the sum of its proper divisors (38607597).

56396403 is a wasteful number, since it uses less digits than its factorization.

56396403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18296 (or 18279 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 56396403 is about 7509.7538574843. The cubic root of 56396403 is about 383.4868430331.

The spelling of 56396403 in words is "fifty-six million, three hundred ninety-six thousand, four hundred three".