13500225425 has 6 divisors (see below), whose sum is σ = 16740279558. Its totient is φ = 10800180320.

The previous prime is 13500225379. The next prime is 13500225443. The reversal of 13500225425 is 52452200531.

It can be written as a sum of positive squares in 3 ways, for example, as 190219264 + 13310006161 = 13792^2 + 115369^2 .

It is not a de Polignac number, because 13500225425 - 2²⁰ = 13499176849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270004484 + ... + 270004533.

It is an arithmetic number, because the mean of its divisors is an integer number (2790046593).

Almost surely, 2^13500225425 is an apocalyptic number.

It is an amenable number.

13500225425 is a deficient number, since it is larger than the sum of its proper divisors (3240054133).

13500225425 is an equidigital number, since it uses as much as digits as its factorization.

13500225425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540009027 (or 540009022 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 13500225425 its reverse (52452200531), we get a palindrome (65952425956).

The spelling of 13500225425 in words is "thirteen billion, five hundred million, two hundred twenty-five thousand, four hundred twenty-five".