57257212 has 24 divisors (see below), whose sum is σ = 104832000. Its totient is φ = 27311856.

The previous prime is 57257183. The next prime is 57257219. The reversal of 57257212 is 21275275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57257219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54589 + ... + 55627.

It is an arithmetic number, because the mean of its divisors is an integer number (4368000).

Almost surely, 2^57257212 is an apocalyptic number.

It is an amenable number.

57257212 is a deficient number, since it is larger than the sum of its proper divisors (47574788).

57257212 is a wasteful number, since it uses less digits than its factorization.

57257212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1663 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 57257212 is about 7566.8495425771. The cubic root of 57257212 is about 385.4281221639.

The spelling of 57257212 in words is "fifty-seven million, two hundred fifty-seven thousand, two hundred twelve".