13013025552 has 120 divisors (see below), whose sum is σ = 37615442904. Its totient is φ = 4197353472.

The previous prime is 13013025511. The next prime is 13013025569. The reversal of 13013025552 is 25552031031.

It is a happy number.

13013025552 is a `hidden beast` number, since 1 + 301 + 302 + 5 + 5 + 52 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5521084416 + 7491941136 = 74304^2 + 86556^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545458 + ... + 568814.

Almost surely, 2^13013025552 is an apocalyptic number.

13013025552 is a gapful number since it is divisible by the number (12) 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 13013025552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18807721452).

13013025552 is an abundant number, since it is smaller than the sum of its proper divisors (24602417352).

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

13013025552 is a wasteful number, since it uses less digits than its factorization.

13013025552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23497 (or 23488 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 13013025552 its reverse (25552031031), we get a palindrome (38565056583).

The spelling of 13013025552 in words is "thirteen billion, thirteen million, twenty-five thousand, five hundred fifty-two".