12502752525 has 18 divisors (see below), whose sum is σ = 22393819370. Its totient is φ = 6668134560.

The previous prime is 12502752511. The next prime is 12502752583. The reversal of 12502752525 is 52525720521.

12502752525 is a `hidden beast` number, since 12 + 50 + 2 + 75 + 2 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1158585444 + 11344167081 = 34038^2 + 106509^2 .

It is not a de Polignac number, because 12502752525 - 2¹⁰ = 12502751501 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12502752525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27783670 + ... + 27784119.

Almost surely, 2^12502752525 is an apocalyptic number.

12502752525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12502752525 is a deficient number, since it is larger than the sum of its proper divisors (9891066845).

12502752525 is a wasteful number, since it uses less digits than its factorization.

12502752525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55567805 (or 55567797 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The spelling of 12502752525 in words is "twelve billion, five hundred two million, seven hundred fifty-two thousand, five hundred twenty-five".