13531110025 has 12 divisors (see below), whose sum is σ = 16786494172. Its totient is φ = 10819779840.

The previous prime is 13531110023. The next prime is 13531110083. The reversal of 13531110025 is 52001113531.

It can be written as a sum of positive squares in 6 ways, for example, as 1044388489 + 12486721536 = 32317^2 + 111744^2 .

It is not a de Polignac number, because 13531110025 - 2¹ = 13531110023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13531109978 and 13531110005.

It is not an unprimeable number, because it can be changed into a prime (13531110023) 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, 73212 + ... + 180061.

Almost surely, 2^13531110025 is an apocalyptic number.

It is an amenable number.

13531110025 is a deficient number, since it is larger than the sum of its proper divisors (3255384147).

13531110025 is a wasteful number, since it uses less digits than its factorization.

13531110025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255420 (or 255415 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 13531110025 its reverse (52001113531), we get a palindrome (65532223556).

The spelling of 13531110025 in words is "thirteen billion, five hundred thirty-one million, one hundred ten thousand, twenty-five".