15255371256 has 16 divisors (see below), whose sum is σ = 38138428200. Its totient is φ = 5085123744.

The previous prime is 15255371221. The next prime is 15255371267. The reversal of 15255371256 is 65217355251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317820211 + ... + 317820258.

Almost surely, 2^15255371256 is an apocalyptic number.

It is an amenable number.

15255371256 is an abundant number, since it is smaller than the sum of its proper divisors (22883056944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15255371256 is a wasteful number, since it uses less digits than its factorization.

15255371256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635640478 (or 635640474 counting only the distinct ones).

The product of its digits is 315000, while the sum is 42.

The spelling of 15255371256 in words is "fifteen billion, two hundred fifty-five million, three hundred seventy-one thousand, two hundred fifty-six".