13525144315 has 4 divisors (see below), whose sum is σ = 16230173184. Its totient is φ = 10820115448.

The previous prime is 13525144313. The next prime is 13525144333. The reversal of 13525144315 is 51344152531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13525144315 - 2¹ = 13525144313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525144313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352514427 + ... + 1352514436.

It is an arithmetic number, because the mean of its divisors is an integer number (4057543296).

Almost surely, 2^13525144315 is an apocalyptic number.

13525144315 is a deficient number, since it is larger than the sum of its proper divisors (2705028869).

13525144315 is an equidigital number, since it uses as much as digits as its factorization.

13525144315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705028868.

The product of its digits is 36000, while the sum is 34.

Adding to 13525144315 its reverse (51344152531), we get a palindrome (64869296846).

The spelling of 13525144315 in words is "thirteen billion, five hundred twenty-five million, one hundred forty-four thousand, three hundred fifteen".