13531135325 has 6 divisors (see below), whose sum is σ = 16778607834. Its totient is φ = 10824908240.

The previous prime is 13531135309. The next prime is 13531135327. The reversal of 13531135325 is 52353113531.

It can be written as a sum of positive squares in 3 ways, for example, as 287268601 + 13243866724 = 16949^2 + 115082^2 .

It is not a de Polignac number, because 13531135325 - 2⁴ = 13531135309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13531135291 and 13531135300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531135327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270622682 + ... + 270622731.

It is an arithmetic number, because the mean of its divisors is an integer number (2796434639).

Almost surely, 2^13531135325 is an apocalyptic number.

It is an amenable number.

13531135325 is a deficient number, since it is larger than the sum of its proper divisors (3247472509).

13531135325 is an equidigital number, since it uses as much as digits as its factorization.

13531135325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541245423 (or 541245418 counting only the distinct ones).

The product of its digits is 20250, while the sum is 32.

Adding to 13531135325 its reverse (52353113531), we get a palindrome (65884248856).

The spelling of 13531135325 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, three hundred twenty-five".