13291552 has 48 divisors (see below), whose sum is σ = 28291032. Its totient is φ = 6123520.

The previous prime is 13291549. The next prime is 13291561. The reversal of 13291552 is 25519231.

It can be written as a sum of positive squares in 4 ways, for example, as 12645136 + 646416 = 3556^2 + 804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13291552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28602 + ... + 29062.

Almost surely, 2^13291552 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 13291552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14145516).

13291552 is an abundant number, since it is smaller than the sum of its proper divisors (14999480).

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

13291552 is a wasteful number, since it uses less digits than its factorization.

13291552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 533 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 13291552 is about 3645.7580830329. The cubic root of 13291552 is about 236.8782748902.

The spelling of 13291552 in words is "thirteen million, two hundred ninety-one thousand, five hundred fifty-two".