56518867 has 2 divisors, whose sum is σ = 56518868. Its totient is φ = 56518866.

The previous prime is 56518849. The next prime is 56518909. The reversal of 56518867 is 76881565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56518867 - 2⁷ = 56518739 is a prime.

It is not a weakly prime, because it can be changed into another prime (56518817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28259433 + 28259434.

It is an arithmetic number, because the mean of its divisors is an integer number (28259434).

Almost surely, 2^56518867 is an apocalyptic number.

56518867 is a deficient number, since it is larger than the sum of its proper divisors (1).

56518867 is an equidigital number, since it uses as much as digits as its factorization.

56518867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The square root of 56518867 is about 7517.9030986040. The cubic root of 56518867 is about 383.7642211270.

The spelling of 56518867 in words is "fifty-six million, five hundred eighteen thousand, eight hundred sixty-seven".