52617478225 has 27 divisors (see below), whose sum is σ = 70670665683. Its totient is φ = 38844973440.

The previous prime is 52617478181. The next prime is 52617478237. The reversal of 52617478225 is 52287471625.

The square root of 52617478225 is 229385.

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

It can be written as a sum of positive squares in 13 ways, for example, as 50071670289 + 2545807936 = 223767^2 + 50456^2 .

It is not a de Polignac number, because 52617478225 - 2¹⁵ = 52617445457 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, 14908261 + ... + 14911789.

Almost surely, 2^52617478225 is an apocalyptic number.

52617478225 is the 229385-th square number.

52617478225 is the 114693-rd centered octagonal number.

It is an amenable number.

52617478225 is a deficient number, since it is larger than the sum of its proper divisors (18053187458).

52617478225 is an frugal number, since it uses more digits than its factorization.

52617478225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094 (or 3547 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 49.

Multiplying 52617478225 by its sum of digits (49), we get a square (2578256433025 = 1605695²).

The spelling of 52617478225 in words is "fifty-two billion, six hundred seventeen million, four hundred seventy-eight thousand, two hundred twenty-five".