56188923 has 16 divisors (see below), whose sum is σ = 87444480. Its totient is φ = 31424256.

The previous prime is 56188919. The next prime is 56188949. The reversal of 56188923 is 32988165.

It is not a de Polignac number, because 56188923 - 2² = 56188919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56188423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27478 + ... + 29451.

It is an arithmetic number, because the mean of its divisors is an integer number (5465280).

Almost surely, 2^56188923 is an apocalyptic number.

56188923 is a deficient number, since it is larger than the sum of its proper divisors (31255557).

56188923 is a wasteful number, since it uses less digits than its factorization.

56188923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56986.

The product of its digits is 103680, while the sum is 42.

The square root of 56188923 is about 7495.9270940958. The cubic root of 56188923 is about 383.0159878071.

It can be divided in two parts, 5618 and 8923, that added together give a palindrome (14541).

The spelling of 56188923 in words is "fifty-six million, one hundred eighty-eight thousand, nine hundred twenty-three".