57120988 has 6 divisors (see below), whose sum is σ = 99961736. Its totient is φ = 28560492.

The previous prime is 57120979. The next prime is 57120989. The reversal of 57120988 is 88902175.

It is a super-2 number, since 2×57120988² = 6525614540192288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57120988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57120989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7140120 + ... + 7140127.

Almost surely, 2^57120988 is an apocalyptic number.

It is an amenable number.

57120988 is a deficient number, since it is larger than the sum of its proper divisors (42840748).

57120988 is a wasteful number, since it uses less digits than its factorization.

57120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14280251 (or 14280249 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 57120988 is about 7557.8428139251. The cubic root of 57120988 is about 385.1222145312.

The spelling of 57120988 in words is "fifty-seven million, one hundred twenty thousand, nine hundred eighty-eight".