13531155025 has 6 divisors (see below), whose sum is σ = 16778632262. Its totient is φ = 10824924000.

The previous prime is 13531155017. The next prime is 13531155031. The reversal of 13531155025 is 52055113531.

It can be written as a sum of positive squares in 3 ways, for example, as 149523984 + 13381631041 = 12228^2 + 115679^2 .

It is not a de Polignac number, because 13531155025 - 2³ = 13531155017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270623076 + ... + 270623125.

Almost surely, 2^13531155025 is an apocalyptic number.

It is an amenable number.

13531155025 is a deficient number, since it is larger than the sum of its proper divisors (3247477237).

13531155025 is an equidigital number, since it uses as much as digits as its factorization.

13531155025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541246211 (or 541246206 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 13531155025 its reverse (52055113531), we get a palindrome (65586268556).

The spelling of 13531155025 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-five thousand, twenty-five".