57555056 has 20 divisors (see below), whose sum is σ = 120091272. Its totient is φ = 26563776.

The previous prime is 57555049. The next prime is 57555059. The reversal of 57555056 is 65055575.

57555056 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 (57555059) 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 3 ways as a sum of consecutive naturals, for example, 138146 + ... + 138561.

Almost surely, 2^57555056 is an apocalyptic number.

It is an amenable number.

57555056 is an abundant number, since it is smaller than the sum of its proper divisors (62536216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57555056 is a wasteful number, since it uses less digits than its factorization.

57555056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276728 (or 276722 counting only the distinct ones).

The product of its (nonzero) digits is 131250, while the sum is 38.

The square root of 57555056 is about 7586.5048606061. The cubic root of 57555056 is about 386.0952810506.

The spelling of 57555056 in words is "fifty-seven million, five hundred fifty-five thousand, fifty-six".