13012857925 has 24 divisors (see below), whose sum is σ = 16226780616. Its totient is φ = 10351856640.

The previous prime is 13012857911. The next prime is 13012858007. The reversal of 13012857925 is 52975821031.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 5358532804 + 7654325121 = 73202^2 + 87489^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13012857925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3619929 + ... + 3623521.

It is an arithmetic number, because the mean of its divisors is an integer number (676115859).

Almost surely, 2^13012857925 is an apocalyptic number.

It is an amenable number.

13012857925 is a deficient number, since it is larger than the sum of its proper divisors (3213922691).

13012857925 is a wasteful number, since it uses less digits than its factorization.

13012857925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377 (or 4372 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 13012857925 in words is "thirteen billion, twelve million, eight hundred fifty-seven thousand, nine hundred twenty-five".