15125315002 has 48 divisors (see below), whose sum is σ = 27209179368. Its totient is φ = 6283630080.

The previous prime is 15125314943. The next prime is 15125315003. The reversal of 15125315002 is 20051352151.

It can be written as a sum of positive squares in 4 ways, for example, as 7118465641 + 8006849361 = 84371^2 + 89481^2 .

It is not an unprimeable number, because it can be changed into a prime (15125315003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618838 + ... + 642814.

Almost surely, 2^15125315002 is an apocalyptic number.

15125315002 is a deficient number, since it is larger than the sum of its proper divisors (12083864366).

15125315002 is a wasteful number, since it uses less digits than its factorization.

15125315002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24191 (or 24184 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 15125315002 its reverse (20051352151), we get a palindrome (35176667153).

The spelling of 15125315002 in words is "fifteen billion, one hundred twenty-five million, three hundred fifteen thousand, two".