56557756 has 24 divisors (see below), whose sum is σ = 107006480. Its totient is φ = 26065152.

The previous prime is 56557751. The next prime is 56557757. The reversal of 56557756 is 65775565.

56557756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56557751) 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 7 ways as a sum of consecutive naturals, for example, 7245 + ... + 12868.

Almost surely, 2^56557756 is an apocalyptic number.

It is an amenable number.

56557756 is a deficient number, since it is larger than the sum of its proper divisors (50448724).

56557756 is a wasteful number, since it uses less digits than its factorization.

56557756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20173 (or 20171 counting only the distinct ones).

The product of its digits is 1102500, while the sum is 46.

The square root of 56557756 is about 7520.4890798405. The cubic root of 56557756 is about 383.8522199724.

The spelling of 56557756 in words is "fifty-six million, five hundred fifty-seven thousand, seven hundred fifty-six".