15552256 has 36 divisors (see below), whose sum is σ = 31477600. Its totient is φ = 7667712.

The previous prime is 15552233. The next prime is 15552259. The reversal of 15552256 is 65225551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15552259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19840 + ... + 20608.

Almost surely, 2^15552256 is an apocalyptic number.

15552256 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 15552256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15738800).

15552256 is an abundant number, since it is smaller than the sum of its proper divisors (15925344).

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

15552256 is an frugal number, since it uses more digits than its factorization.

15552256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 850 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 15552256 is about 3943.6348715367. The cubic root of 15552256 is about 249.6114283612.

The spelling of 15552256 in words is "fifteen million, five hundred fifty-two thousand, two hundred fifty-six".