13515255325 has 54 divisors (see below), whose sum is σ = 19947708942. Its totient is φ = 9072835200.

The previous prime is 13515255317. The next prime is 13515255337. The reversal of 13515255325 is 52355251531.

13515255325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 6187552921 + 7327702404 = 78661^2 + 85602^2 .

It is not a de Polignac number, because 13515255325 - 2³ = 13515255317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 498007 + ... + 524443.

Almost surely, 2^13515255325 is an apocalyptic number.

It is an amenable number.

13515255325 is a deficient number, since it is larger than the sum of its proper divisors (6432453617).

13515255325 is a wasteful number, since it uses less digits than its factorization.

13515255325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26495 (or 26466 counting only the distinct ones).

The product of its digits is 112500, while the sum is 37.

The spelling of 13515255325 in words is "thirteen billion, five hundred fifteen million, two hundred fifty-five thousand, three hundred twenty-five".