15256651525 has 12 divisors (see below), whose sum is σ = 19740781152. Its totient is φ = 11674654640.

The previous prime is 15256651493. The next prime is 15256651541. The reversal of 15256651525 is 52515665251.

It is not a de Polignac number, because 15256651525 - 2⁵ = 15256651493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13266079 + ... + 13267228.

It is an arithmetic number, because the mean of its divisors is an integer number (1645065096).

Almost surely, 2^15256651525 is an apocalyptic number.

It is an amenable number.

15256651525 is a deficient number, since it is larger than the sum of its proper divisors (4484129627).

15256651525 is a wasteful number, since it uses less digits than its factorization.

15256651525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533340 (or 26533335 counting only the distinct ones).

The product of its digits is 450000, while the sum is 43.

The spelling of 15256651525 in words is "fifteen billion, two hundred fifty-six million, six hundred fifty-one thousand, five hundred twenty-five".