56688923 has 2 divisors, whose sum is σ = 56688924. Its totient is φ = 56688922.

The previous prime is 56688893. The next prime is 56688941. The reversal of 56688923 is 32988665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56688923 - 2²² = 52494619 is a prime.

It is not a weakly prime, because it can be changed into another prime (56688943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28344461 + 28344462.

It is an arithmetic number, because the mean of its divisors is an integer number (28344462).

Almost surely, 2^56688923 is an apocalyptic number.

56688923 is a deficient number, since it is larger than the sum of its proper divisors (1).

56688923 is an equidigital number, since it uses as much as digits as its factorization.

56688923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 56688923 is about 7529.2046724737. The cubic root of 56688923 is about 384.1487302736.

The spelling of 56688923 in words is "fifty-six million, six hundred eighty-eight thousand, nine hundred twenty-three".