15256256 has 28 divisors (see below), whose sum is σ = 30528768. Its totient is φ = 7564032.

The previous prime is 15256253. The next prime is 15256261. The reversal of 15256256 is 65265251.

15256256 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (15256253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7190 + ... + 9066.

Almost surely, 2^15256256 is an apocalyptic number.

15256256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15256256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15264384).

15256256 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15256256 is a wasteful number, since it uses less digits than its factorization.

15256256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2006 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 15256256 is about 3905.9257545427. The cubic root of 15256256 is about 248.0176886447.

The spelling of 15256256 in words is "fifteen million, two hundred fifty-six thousand, two hundred fifty-six".