57237213 has 16 divisors (see below), whose sum is σ = 86126400. Its totient is φ = 33492480.

The previous prime is 57237199. The next prime is 57237217. The reversal of 57237213 is 31273275.

It is not a de Polignac number, because 57237213 - 2⁴ = 57237197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57237217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28948 + ... + 30861.

It is an arithmetic number, because the mean of its divisors is an integer number (5382900).

Almost surely, 2^57237213 is an apocalyptic number.

It is an amenable number.

57237213 is a deficient number, since it is larger than the sum of its proper divisors (28889187).

57237213 is a wasteful number, since it uses less digits than its factorization.

57237213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59852.

The product of its digits is 8820, while the sum is 30.

The square root of 57237213 is about 7565.5279392783. The cubic root of 57237213 is about 385.3832423757.

The spelling of 57237213 in words is "fifty-seven million, two hundred thirty-seven thousand, two hundred thirteen".