13117552 has 40 divisors (see below), whose sum is σ = 29257056. Its totient is φ = 5581056.

The previous prime is 13117549. The next prime is 13117561. The reversal of 13117552 is 25571131.

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, 19038 + ... + 19714.

Almost surely, 2^13117552 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 13117552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14628528).

13117552 is an abundant number, since it is smaller than the sum of its proper divisors (16139504).

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

13117552 is a wasteful number, since it uses less digits than its factorization.

13117552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its digits is 1050, while the sum is 25.

The square root of 13117552 is about 3621.8161190210. The cubic root of 13117552 is about 235.8400716720.

Adding to 13117552 its reverse (25571131), we get a palindrome (38688683).

The spelling of 13117552 in words is "thirteen million, one hundred seventeen thousand, five hundred fifty-two".