13563513004225 has 12 divisors (see below), whose sum is σ = 16820619153660. Its totient is φ = 10849608449600.

The previous prime is 13563513004201. The next prime is 13563513004271. The reversal of 13563513004225 is 52240031536531.

It can be written as a sum of positive squares in 6 ways, for example, as 102568389169 + 13460944615056 = 320263^2 + 3668916^2 .

It is not a de Polignac number, because 13563513004225 - 2⁹ = 13563513003713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29818606 + ... + 30270055.

It is an arithmetic number, because the mean of its divisors is an integer number (1401718262805).

Almost surely, 2^{13563513004225} is an apocalyptic number.

It is an amenable number.

13563513004225 is a deficient number, since it is larger than the sum of its proper divisors (3257106149435).

13563513004225 is an equidigital number, since it uses as much as digits as its factorization.

13563513004225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60097700 (or 60097695 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 13563513004225 in words is "thirteen trillion, five hundred sixty-three billion, five hundred thirteen million, four thousand, two hundred twenty-five".