56773431 has 48 divisors (see below), whose sum is σ = 99520512. Its totient is φ = 30715200.

The previous prime is 56773427. The next prime is 56773447. The reversal of 56773431 is 13437765.

It is not a de Polignac number, because 56773431 - 2² = 56773427 is a prime.

It is a super-2 number, since 2×56773431² = 6446444935023522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56773231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39186 + ... + 40608.

It is an arithmetic number, because the mean of its divisors is an integer number (2073344).

Almost surely, 2^56773431 is an apocalyptic number.

56773431 is a deficient number, since it is larger than the sum of its proper divisors (42747081).

56773431 is a wasteful number, since it uses less digits than its factorization.

56773431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1481 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 56773431 is about 7534.8145962592. The cubic root of 56773431 is about 384.3395231187.

It can be divided in two parts, 567734 and 31, that added together give a palindrome (567765).

The spelling of 56773431 in words is "fifty-six million, seven hundred seventy-three thousand, four hundred thirty-one".