56899431 has 24 divisors (see below), whose sum is σ = 84651840. Its totient is φ = 36806400.

The previous prime is 56899393. The next prime is 56899439. The reversal of 56899431 is 13499865.

It is a happy number.

It is not a de Polignac number, because 56899431 - 2¹⁷ = 56768359 is a prime.

It is a super-2 number, since 2×56899431² = 6475090496247522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56899439) 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, 99715 + ... + 100283.

It is an arithmetic number, because the mean of its divisors is an integer number (3527160).

Almost surely, 2^56899431 is an apocalyptic number.

56899431 is a deficient number, since it is larger than the sum of its proper divisors (27752409).

56899431 is a wasteful number, since it uses less digits than its factorization.

56899431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 884 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 56899431 is about 7543.1711501198. The cubic root of 56899431 is about 384.6236407530.

It can be divided in two parts, 568 and 99431, that added together give a palindrome (99999).

The spelling of 56899431 in words is "fifty-six million, eight hundred ninety-nine thousand, four hundred thirty-one".