56391044 has 12 divisors (see below), whose sum is σ = 98966364. Its totient is φ = 28114944.

The previous prime is 56391011. The next prime is 56391059. The reversal of 56391044 is 44019365.

56391044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36481600 + 19909444 = 6040^2 + 4462^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56391044.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18557 + ... + 21380.

It is an arithmetic number, because the mean of its divisors is an integer number (8247197).

Almost surely, 2^56391044 is an apocalyptic number.

It is an amenable number.

56391044 is a deficient number, since it is larger than the sum of its proper divisors (42575320).

56391044 is a wasteful number, since it uses less digits than its factorization.

56391044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40294 (or 40292 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 56391044 is about 7509.3970463680. The cubic root of 56391044 is about 383.4746958572.

The spelling of 56391044 in words is "fifty-six million, three hundred ninety-one thousand, forty-four".