57272512 has 28 divisors (see below), whose sum is σ = 123983496. Its totient is φ = 26032640.

The previous prime is 57272503. The next prime is 57272513. The reversal of 57272512 is 21527275.

It is not an unprimeable number, because it can be changed into a prime (57272513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39973 + ... + 41380.

It is an arithmetic number, because the mean of its divisors is an integer number (4427982).

Almost surely, 2^57272512 is an apocalyptic number.

It is an amenable number.

57272512 is an abundant number, since it is smaller than the sum of its proper divisors (66710984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57272512 is a wasteful number, since it uses less digits than its factorization.

57272512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81376 (or 81366 counting only the distinct ones).

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

The square root of 57272512 is about 7567.8604638299. The cubic root of 57272512 is about 385.4624498633.

Adding to 57272512 its reverse (21527275), we get a palindrome (78799787).

The spelling of 57272512 in words is "fifty-seven million, two hundred seventy-two thousand, five hundred twelve".