15131025325 has 24 divisors (see below), whose sum is σ = 20317451336. Its totient is φ = 11111904000.

The previous prime is 15131025319. The next prime is 15131025353. The reversal of 15131025325 is 52352013151.

It can be written as a sum of positive squares in 12 ways, for example, as 10257030729 + 4873994596 = 101277^2 + 69814^2 .

It is a de Polignac number, because none of the positive numbers 2^k-15131025325 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15131025293 and 15131025302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69786 + ... + 187435.

Almost surely, 2^15131025325 is an apocalyptic number.

It is an amenable number.

15131025325 is a deficient number, since it is larger than the sum of its proper divisors (5186426011).

15131025325 is a wasteful number, since it uses less digits than its factorization.

15131025325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257425 (or 257420 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 15131025325 its reverse (52352013151), we get a palindrome (67483038476).

The spelling of 15131025325 in words is "fifteen billion, one hundred thirty-one million, twenty-five thousand, three hundred twenty-five".