13530135325 has 12 divisors (see below), whose sum is σ = 19174134880. Its totient is φ = 9277806960.

The previous prime is 13530135323. The next prime is 13530135379. The reversal of 13530135325 is 52353103531.

It is not a de Polignac number, because 13530135325 - 2¹ = 13530135323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530135323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38657355 + ... + 38657704.

Almost surely, 2^13530135325 is an apocalyptic number.

It is an amenable number.

13530135325 is a deficient number, since it is larger than the sum of its proper divisors (5643999555).

13530135325 is an equidigital number, since it uses as much as digits as its factorization.

13530135325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77315076 (or 77315071 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 31.

Adding to 13530135325 its reverse (52353103531), we get a palindrome (65883238856).

The spelling of 13530135325 in words is "thirteen billion, five hundred thirty million, one hundred thirty-five thousand, three hundred twenty-five".