57056120 has 128 divisors (see below), whose sum is σ = 149299200. Its totient is φ = 19430400.

The previous prime is 57056117. The next prime is 57056161. The reversal of 57056120 is 2165075.

It is a self number, because there is not a number n which added to its sum of digits gives 57056120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641036 + ... + 641124.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 2^57056120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57056120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74649600).

57056120 is an abundant number, since it is smaller than the sum of its proper divisors (92243080).

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

57056120 is a wasteful number, since it uses less digits than its factorization.

57056120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 57056120 is about 7553.5501587002. The cubic root of 57056120 is about 384.9763745552.

The spelling of 57056120 in words is "fifty-seven million, fifty-six thousand, one hundred twenty".