15012375625 has 75 divisors (see below), whose sum is σ = 21047646191. Its totient is φ = 10703784000.

The previous prime is 15012375619. The next prime is 15012375629. The reversal of 15012375625 is 52657321051.

The square root of 15012375625 is 122525.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 37 ways, for example, as 956850489 + 14055525136 = 30933^2 + 118556^2 .

It is a de Polignac number, because none of the positive numbers 2^k-15012375625 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15012375629) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 517668111 + ... + 517668139.

Almost surely, 2^15012375625 is an apocalyptic number.

15012375625 is the 122525-th square number.

15012375625 is the 61263-rd centered octagonal number.

It is an amenable number.

15012375625 is a deficient number, since it is larger than the sum of its proper divisors (6035270566).

15012375625 is an frugal number, since it uses more digits than its factorization.

15012375625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

Adding to 15012375625 its reverse (52657321051), we get a palindrome (67669696676).

The spelling of 15012375625 in words is "fifteen billion, twelve million, three hundred seventy-five thousand, six hundred twenty-five".