56558144 has 14 divisors (see below), whose sum is σ = 112232694. Its totient is φ = 28279040.

The previous prime is 56558143. The next prime is 56558153. The reversal of 56558144 is 44185565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56550400 + 7744 = 7520^2 + 88^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56558098 and 56558107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 441797 + ... + 441924.

It is an arithmetic number, because the mean of its divisors is an integer number (8016621).

Almost surely, 2^56558144 is an apocalyptic number.

It is an amenable number.

56558144 is a deficient number, since it is larger than the sum of its proper divisors (55674550).

56558144 is an equidigital number, since it uses as much as digits as its factorization.

56558144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883733 (or 883723 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 56558144 is about 7520.5148759909. The cubic root of 56558144 is about 383.8530977437.

The spelling of 56558144 in words is "fifty-six million, five hundred fifty-eight thousand, one hundred forty-four".