13519336228225 has 9 divisors (see below), whose sum is σ = 16763999719593. Its totient is φ = 10815454275120.

The previous prime is 13519336228219. The next prime is 13519336228249. The reversal of 13519336228225 is 52282263391531.

The square root of 13519336228225 is 3676865.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7227747271809 + 6291588956416 = 2688447^2 + 2508304^2 .

It is not a de Polignac number, because 13519336228225 - 2⁵ = 13519336228193 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 (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18016639 + ... + 18752011.

Almost surely, 2^{13519336228225} is an apocalyptic number.

13519336228225 is the 3676865-th square number.

13519336228225 is the 1838433-rd centered octagonal number.

It is an amenable number.

13519336228225 is a deficient number, since it is larger than the sum of its proper divisors (3244663491368).

13519336228225 is an frugal number, since it uses more digits than its factorization.

13519336228225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470756 (or 735378 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The spelling of 13519336228225 in words is "thirteen trillion, five hundred nineteen billion, three hundred thirty-six million, two hundred twenty-eight thousand, two hundred twenty-five".