12516567525 has 120 divisors (see below), whose sum is σ = 28906346304. Its totient is φ = 5201625600.

The previous prime is 12516567487. The next prime is 12516567529. The reversal of 12516567525 is 52576561521.

12516567525 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 65 + 67 + 525 = 666.

It is not a de Polignac number, because 12516567525 - 2⁶ = 12516567461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516567529) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 115789 + ... + 196061.

Almost surely, 2^12516567525 is an apocalyptic number.

12516567525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12516567525 is an abundant number, since it is smaller than the sum of its proper divisors (16389778779).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12516567525 is a wasteful number, since it uses less digits than its factorization.

12516567525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80313 (or 80299 counting only the distinct ones).

The product of its digits is 630000, while the sum is 45.

The spelling of 12516567525 in words is "twelve billion, five hundred sixteen million, five hundred sixty-seven thousand, five hundred twenty-five".