52709272225 has 81 divisors (see below), whose sum is σ = 72348433857. Its totient is φ = 38085396480.

The previous prime is 52709272207. The next prime is 52709272241. The reversal of 52709272225 is 52227290725.

The square root of 52709272225 is 229585.

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

52709272225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 40 ways, for example, as 32049234529 + 20660037696 = 179023^2 + 143736^2 .

It is not a de Polignac number, because 52709272225 - 2¹⁹ = 52708747937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 722044789 + ... + 722044861.

Almost surely, 2^52709272225 is an apocalyptic number.

52709272225 is the 229585-th square number.

52709272225 is the 114793-rd centered octagonal number.

It is an amenable number.

52709272225 is a deficient number, since it is larger than the sum of its proper divisors (19639161632).

52709272225 is an equidigital number, since it uses as much as digits as its factorization.

52709272225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 52709272225 in words is "fifty-two billion, seven hundred nine million, two hundred seventy-two thousand, two hundred twenty-five".