13513005325 has 6 divisors (see below), whose sum is σ = 16756126634. Its totient is φ = 10810404240.

The previous prime is 13513005281. The next prime is 13513005343. The reversal of 13513005325 is 52350031531.

It can be written as a sum of positive squares in 3 ways, for example, as 2117656324 + 11395349001 = 46018^2 + 106749^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13513005325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13513005293 and 13513005302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270260082 + ... + 270260131.

Almost surely, 2^13513005325 is an apocalyptic number.

It is an amenable number.

13513005325 is a deficient number, since it is larger than the sum of its proper divisors (3243121309).

13513005325 is an equidigital number, since it uses as much as digits as its factorization.

13513005325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540520223 (or 540520218 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 13513005325 its reverse (52350031531), we get a palindrome (65863036856).

The spelling of 13513005325 in words is "thirteen billion, five hundred thirteen million, five thousand, three hundred twenty-five".