56909403 has 12 divisors (see below), whose sum is σ = 82391400. Its totient is φ = 37852416.

The previous prime is 56909381. The next prime is 56909417. The reversal of 56909403 is 30490965.

56909403 is a `hidden beast` number, since 569 + 0 + 94 + 0 + 3 = 666.

It is not a de Polignac number, because 56909403 - 2¹⁶ = 56843867 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 (56909483) 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, 3001 + ... + 11082.

It is an arithmetic number, because the mean of its divisors is an integer number (6865950).

Almost surely, 2^56909403 is an apocalyptic number.

56909403 is a deficient number, since it is larger than the sum of its proper divisors (25481997).

56909403 is a wasteful number, since it uses less digits than its factorization.

56909403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538 (or 14535 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 56909403 is about 7543.8321163716. The cubic root of 56909403 is about 384.6461087159.

The spelling of 56909403 in words is "fifty-six million, nine hundred nine thousand, four hundred three".