13523895925225 has 27 divisors (see below), whose sum is σ = 19507715539671. Its totient is φ = 9273440374800.

The previous prime is 13523895925213. The next prime is 13523895925231. The reversal of 13523895925225 is 52252959832531.

The square root of 13523895925225 is 3677485.

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

It can be written as a sum of positive squares in only one way, i.e., 4868602533081 + 8655293392144 = 2206491^2 + 2941988^2 .

It is not a de Polignac number, because 13523895925225 - 2¹¹ = 13523895923177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 128659440 + ... + 128764510.

Almost surely, 2^{13523895925225} is an apocalyptic number.

13523895925225 is the 3677485-th square number.

13523895925225 is the 1838743-rd centered octagonal number.

It is an amenable number.

13523895925225 is a deficient number, since it is larger than the sum of its proper divisors (5983819614446).

13523895925225 is an frugal number, since it uses more digits than its factorization.

13523895925225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210166 (or 105083 counting only the distinct ones).

The product of its digits is 58320000, while the sum is 61.

The spelling of 13523895925225 in words is "thirteen trillion, five hundred twenty-three billion, eight hundred ninety-five million, nine hundred twenty-five thousand, two hundred twenty-five".