25102139913 has 12 divisors (see below), whose sum is σ = 36260809728. Its totient is φ = 16733761560.

The previous prime is 25102139911. The next prime is 25102139917. The reversal of 25102139913 is 31993120152.

25102139913 is a `hidden beast` number, since 2 + 510 + 2 + 139 + 9 + 1 + 3 = 666.

It is not a de Polignac number, because 25102139913 - 2¹ = 25102139911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25102139911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96456 + ... + 243942.

It is an arithmetic number, because the mean of its divisors is an integer number (3021734144).

Almost surely, 2^25102139913 is an apocalyptic number.

It is an amenable number.

25102139913 is a deficient number, since it is larger than the sum of its proper divisors (11158669815).

25102139913 is a wasteful number, since it uses less digits than its factorization.

25102139913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166404 (or 166401 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 25102139913 in words is "twenty-five billion, one hundred two million, one hundred thirty-nine thousand, nine hundred thirteen".