56168889 has 16 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 32052240.

The previous prime is 56168863. The next prime is 56168897. The reversal of 56168889 is 98886165.

56168889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56168889 - 2⁸ = 56168633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56168089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19462 + ... + 22160.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^56168889 is an apocalyptic number.

It is an amenable number.

56168889 is a deficient number, since it is larger than the sum of its proper divisors (29539911).

56168889 is a wasteful number, since it uses less digits than its factorization.

56168889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700.

The product of its digits is 829440, while the sum is 51.

The square root of 56168889 is about 7494.5906492616. The cubic root of 56168889 is about 382.9704613104.

The spelling of 56168889 in words is "fifty-six million, one hundred sixty-eight thousand, eight hundred eighty-nine".