52139302770025 has 27 divisors (see below), whose sum is σ = 65001600620229. Its totient is φ = 41487569928000.

The previous prime is 52139302770013. The next prime is 52139302770043. The reversal of 52139302770025 is 52007720393125.

The square root of 52139302770025 is 7220755.

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 8576715531609 + 43562587238416 = 2928603^2 + 6600196^2 .

It is not a de Polignac number, because 52139302770025 - 2¹⁵ = 52139302737257 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, 6895817245 + ... + 6895824805.

Almost surely, 2^{52139302770025} is an apocalyptic number.

52139302770025 is the 7220755-th square number.

52139302770025 is the 3610378-th centered octagonal number.

It is an amenable number.

52139302770025 is a deficient number, since it is larger than the sum of its proper divisors (12862297850204).

52139302770025 is an frugal number, since it uses more digits than its factorization.

52139302770025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15514 (or 7757 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 52139302770025 in words is "fifty-two trillion, one hundred thirty-nine billion, three hundred two million, seven hundred seventy thousand, twenty-five".