13511504425 has 6 divisors (see below), whose sum is σ = 16754265518. Its totient is φ = 10809203520.

The previous prime is 13511504423. The next prime is 13511504437. The reversal of 13511504425 is 52440511531.

It can be written as a sum of positive squares in 3 ways, for example, as 212110096 + 13299394329 = 14564^2 + 115323^2 .

It is not a de Polignac number, because 13511504425 - 2¹ = 13511504423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13511504423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270230064 + ... + 270230113.

Almost surely, 2^13511504425 is an apocalyptic number.

It is an amenable number.

13511504425 is a deficient number, since it is larger than the sum of its proper divisors (3242761093).

13511504425 is an equidigital number, since it uses as much as digits as its factorization.

13511504425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540460187 (or 540460182 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 13511504425 in words is "thirteen billion, five hundred eleven million, five hundred four thousand, four hundred twenty-five".