57115331 has 16 divisors (see below), whose sum is σ = 71736000. Its totient is φ = 45186624.

The previous prime is 57115327. The next prime is 57115339. The reversal of 57115331 is 13351175.

57115331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57115331 - 2² = 57115327 is a prime.

It is a super-2 number, since 2×57115331² = 6524322070479122, 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 57115331.

It is not an unprimeable number, because it can be changed into a prime (57115339) 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 15 ways as a sum of consecutive naturals, for example, 1946 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (4483500).

Almost surely, 2^57115331 is an apocalyptic number.

57115331 is a deficient number, since it is larger than the sum of its proper divisors (14620669).

57115331 is a wasteful number, since it uses less digits than its factorization.

57115331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12843 (or 12829 counting only the distinct ones).

The product of its digits is 1575, while the sum is 26.

The square root of 57115331 is about 7557.4685576587. The cubic root of 57115331 is about 385.1095005337.

The spelling of 57115331 in words is "fifty-seven million, one hundred fifteen thousand, three hundred thirty-one".