57208612 has 12 divisors (see below), whose sum is σ = 102557196. Its totient is φ = 27906560.

The previous prime is 57208607. The next prime is 57208637. The reversal of 57208612 is 21680275.

It can be written as a sum of positive squares in 2 ways, for example, as 1048576 + 56160036 = 1024^2 + 7494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174253 + ... + 174580.

It is an arithmetic number, because the mean of its divisors is an integer number (8546433).

Almost surely, 2^57208612 is an apocalyptic number.

It is an amenable number.

57208612 is a deficient number, since it is larger than the sum of its proper divisors (45348584).

57208612 is a wasteful number, since it uses less digits than its factorization.

57208612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348878 (or 348876 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 57208612 is about 7563.6374847027. The cubic root of 57208612 is about 385.3190406558.

Adding to 57208612 its reverse (21680275), we get a palindrome (78888887).

The spelling of 57208612 in words is "fifty-seven million, two hundred eight thousand, six hundred twelve".