13553256 has 64 divisors (see below), whose sum is σ = 36241920. Its totient is φ = 4213440.

The previous prime is 13553209. The next prime is 13553257. The reversal of 13553256 is 65235531.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13553257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23451 + ... + 24021.

It is an arithmetic number, because the mean of its divisors is an integer number (566280).

Almost surely, 2^13553256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13553256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18120960).

13553256 is an abundant number, since it is smaller than the sum of its proper divisors (22688664).

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

13553256 is a wasteful number, since it uses less digits than its factorization.

13553256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 642 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 13553256 is about 3681.4747045172. The cubic root of 13553256 is about 238.4228530110.

Adding to 13553256 its reverse (65235531), we get a palindrome (78788787).

The spelling of 13553256 in words is "thirteen million, five hundred fifty-three thousand, two hundred fifty-six".