15504368725 has 12 divisors (see below), whose sum is σ = 19268829216. Its totient is φ = 12375487280.

The previous prime is 15504368717. The next prime is 15504368729. The reversal of 15504368725 is 52786340551.

It is not a de Polignac number, because 15504368725 - 2³ = 15504368717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15504368729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688897 + ... + 711046.

It is an arithmetic number, because the mean of its divisors is an integer number (1605735768).

Almost surely, 2^15504368725 is an apocalyptic number.

It is an amenable number.

15504368725 is a deficient number, since it is larger than the sum of its proper divisors (3764460491).

15504368725 is a wasteful number, since it uses less digits than its factorization.

15504368725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400396 (or 1400391 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 15504368725 in words is "fifteen billion, five hundred four million, three hundred sixty-eight thousand, seven hundred twenty-five".