13887512525 has 12 divisors (see below), whose sum is σ = 17776017024. Its totient is φ = 10751622000.

The previous prime is 13887512521. The next prime is 13887512537. The reversal of 13887512525 is 52521578831.

It is not a de Polignac number, because 13887512525 - 2² = 13887512521 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13887512525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887512521) 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, 8958911 + ... + 8960460.

It is an arithmetic number, because the mean of its divisors is an integer number (1481334752).

Almost surely, 2^13887512525 is an apocalyptic number.

It is an amenable number.

13887512525 is a deficient number, since it is larger than the sum of its proper divisors (3888504499).

13887512525 is a wasteful number, since it uses less digits than its factorization.

13887512525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17919412 (or 17919407 counting only the distinct ones).

The product of its digits is 672000, while the sum is 47.

The spelling of 13887512525 in words is "thirteen billion, eight hundred eighty-seven million, five hundred twelve thousand, five hundred twenty-five".