57515012 has 12 divisors (see below), whose sum is σ = 106572060. Its totient is φ = 27065856.

The previous prime is 57514999. The next prime is 57515023. The reversal of 57515012 is 21051575.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19149376 + 38365636 = 4376^2 + 6194^2 .

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, 422837 + ... + 422972.

It is an arithmetic number, because the mean of its divisors is an integer number (8881005).

Almost surely, 2^57515012 is an apocalyptic number.

It is an amenable number.

57515012 is a deficient number, since it is larger than the sum of its proper divisors (49057048).

57515012 is a wasteful number, since it uses less digits than its factorization.

57515012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845830 (or 845828 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 57515012 is about 7583.8652414188. The cubic root of 57515012 is about 386.0057181896.

Adding to 57515012 its reverse (21051575), we get a palindrome (78566587).

The spelling of 57515012 in words is "fifty-seven million, five hundred fifteen thousand, twelve".