57320012 has 6 divisors (see below), whose sum is σ = 100310028. Its totient is φ = 28660004.

The previous prime is 57319981. The next prime is 57320027. The reversal of 57320012 is 21002375.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7164998 + ... + 7165005.

It is an arithmetic number, because the mean of its divisors is an integer number (16718338).

Almost surely, 2^57320012 is an apocalyptic number.

It is an amenable number.

57320012 is a deficient number, since it is larger than the sum of its proper divisors (42990016).

57320012 is a wasteful number, since it uses less digits than its factorization.

57320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14330007 (or 14330005 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 57320012 is about 7570.9980847970. The cubic root of 57320012 is about 385.5689838490.

Adding to 57320012 its reverse (21002375), we get a palindrome (78322387).

The spelling of 57320012 in words is "fifty-seven million, three hundred twenty thousand, twelve".