13255956 has 72 divisors (see below), whose sum is σ = 39259584. Its totient is φ = 3692160.

The previous prime is 13255951. The next prime is 13255999. The reversal of 13255956 is 65955231.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13255956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13255951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9691 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (545272).

Almost surely, 2^13255956 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 13255956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19629792).

13255956 is an abundant number, since it is smaller than the sum of its proper divisors (26003628).

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

13255956 is a wasteful number, since it uses less digits than its factorization.

13255956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1336 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 13255956 is about 3640.8729722417. The cubic root of 13255956 is about 236.6666252287. Note that the first 4 decimals are identical.

The spelling of 13255956 in words is "thirteen million, two hundred fifty-five thousand, nine hundred fifty-six".