56079989 has 16 divisors (see below), whose sum is σ = 66251520. Its totient is φ = 46475520.

The previous prime is 56079983. The next prime is 56080007. The reversal of 56079989 is 98997065.

It is not a de Polignac number, because 56079989 - 2⁸ = 56079733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56079989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56079983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25277 + ... + 27405.

It is an arithmetic number, because the mean of its divisors is an integer number (4140720).

Almost surely, 2^56079989 is an apocalyptic number.

It is an amenable number.

56079989 is a deficient number, since it is larger than the sum of its proper divisors (10171531).

56079989 is a wasteful number, since it uses less digits than its factorization.

56079989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 56079989 is about 7488.6573562956. The cubic root of 56079989 is about 382.7683087647.

The spelling of 56079989 in words is "fifty-six million, seventy-nine thousand, nine hundred eighty-nine".