12503917525 has 12 divisors (see below), whose sum is σ = 16914390624. Its totient is φ = 9093758000.

The previous prime is 12503917519. The next prime is 12503917541. The reversal of 12503917525 is 52571930521.

It is not a de Polignac number, because 12503917525 - 2⁷ = 12503917397 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 11 ways as a sum of consecutive naturals, for example, 22734121 + ... + 22734670.

It is an arithmetic number, because the mean of its divisors is an integer number (1409532552).

Almost surely, 2^12503917525 is an apocalyptic number.

It is an amenable number.

12503917525 is a deficient number, since it is larger than the sum of its proper divisors (4410473099).

12503917525 is a wasteful number, since it uses less digits than its factorization.

12503917525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45468812 (or 45468807 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 40.

The spelling of 12503917525 in words is "twelve billion, five hundred three million, nine hundred seventeen thousand, five hundred twenty-five".