57237081 has 16 divisors (see below), whose sum is σ = 84116928. Its totient is φ = 34329600.

The previous prime is 57237077. The next prime is 57237083. The reversal of 57237081 is 18073275.

It is not a de Polignac number, because 57237081 - 2² = 57237077 is a prime.

It is a super-2 number, since 2×57237081² = 6552166882801122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (57237083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5740 + ... + 12141.

It is an arithmetic number, because the mean of its divisors is an integer number (5257308).

Almost surely, 2^57237081 is an apocalyptic number.

It is an amenable number.

57237081 is a deficient number, since it is larger than the sum of its proper divisors (26879847).

57237081 is a wasteful number, since it uses less digits than its factorization.

57237081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 57237081 is about 7565.5192154934. The cubic root of 57237081 is about 385.3829461196.

The spelling of 57237081 in words is "fifty-seven million, two hundred thirty-seven thousand, eighty-one".