56393913 has 16 divisors (see below), whose sum is σ = 80628480. Its totient is φ = 34934016.

The previous prime is 56393903. The next prime is 56393923. The reversal of 56393913 is 31939365.

It is an interprime number because it is at equal distance from previous prime (56393903) and next prime (56393923).

It is not a de Polignac number, because 56393913 - 2¹⁸ = 56131769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56393903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2970 + ... + 11027.

It is an arithmetic number, because the mean of its divisors is an integer number (5039280).

Almost surely, 2^56393913 is an apocalyptic number.

It is an amenable number.

56393913 is a deficient number, since it is larger than the sum of its proper divisors (24234567).

56393913 is a wasteful number, since it uses less digits than its factorization.

56393913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14096.

The product of its digits is 65610, while the sum is 39.

The square root of 56393913 is about 7509.5880712593. The cubic root of 56393913 is about 383.4811990781.

The spelling of 56393913 in words is "fifty-six million, three hundred ninety-three thousand, nine hundred thirteen".