56575390 has 16 divisors (see below), whose sum is σ = 102040560. Its totient is φ = 22584640.

The previous prime is 56575381. The next prime is 56575391. The reversal of 56575390 is 9357565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56575391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 10639.

It is an arithmetic number, because the mean of its divisors is an integer number (6377535).

Almost surely, 2^56575390 is an apocalyptic number.

56575390 is a deficient number, since it is larger than the sum of its proper divisors (45465170).

56575390 is a wasteful number, since it uses less digits than its factorization.

56575390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 56575390 is about 7521.6613856249. The cubic root of 56575390 is about 383.8921092654.

It can be divided in two parts, 56575 and 390, that added together give a palindrome (56965).

The spelling of 56575390 in words is "fifty-six million, five hundred seventy-five thousand, three hundred ninety".