12557825659 has 16 divisors (see below), whose sum is σ = 13863398400. Its totient is φ = 11321662464.

The previous prime is 12557825617. The next prime is 12557825669. The reversal of 12557825659 is 95652875521.

It is a cyclic number.

It is not a de Polignac number, because 12557825659 - 2²³ = 12549437051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12557825669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37674 + ... + 162895.

It is an arithmetic number, because the mean of its divisors is an integer number (866462400).

Almost surely, 2^12557825659 is an apocalyptic number.

12557825659 is a deficient number, since it is larger than the sum of its proper divisors (1305572741).

12557825659 is a wasteful number, since it uses less digits than its factorization.

12557825659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200742.

The product of its digits is 7560000, while the sum is 55.

The spelling of 12557825659 in words is "twelve billion, five hundred fifty-seven million, eight hundred twenty-five thousand, six hundred fifty-nine".