12557313 has 12 divisors (see below), whose sum is σ = 18170880. Its totient is φ = 8356536.

The previous prime is 12557297. The next prime is 12557317. The reversal of 12557313 is 31375521.

12557313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12557313 - 2⁴ = 12557297 is a prime.

It is a super-2 number, since 2×12557313² = 315372219559938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12557317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6720 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (1514240).

Almost surely, 2^12557313 is an apocalyptic number.

It is an amenable number.

12557313 is a deficient number, since it is larger than the sum of its proper divisors (5613567).

12557313 is a wasteful number, since it uses less digits than its factorization.

12557313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 2505 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 12557313 is about 3543.6299186004. The cubic root of 12557313 is about 232.4335987971.

The spelling of 12557313 in words is "twelve million, five hundred fifty-seven thousand, three hundred thirteen".