52420278834225 has 297 divisors, whose sum is σ = 100173460105249. Its totient is φ = 27211511304000.

The previous prime is 52420278834223. The next prime is 52420278834227. The reversal of 52420278834225 is 52243887202425.

The square root of 52420278834225 is 7240185.

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

52420278834225 is a `hidden beast` number, since 5 + 2 + 4 + 2 + 0 + 278 + 8 + 342 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (52420278834223) and next prime (52420278834227).

It can be written as a sum of positive squares in 4 ways, for example, as 9679123654641 + 42741155179584 = 3111129^2 + 6537672^2 .

It is not a de Polignac number, because 52420278834225 - 2¹ = 52420278834223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52420278834223) by changing a digit.

It is a polite number, since it can be written in 296 ways as a sum of consecutive naturals, for example, 519012661675 + ... + 519012661775.

Almost surely, 2^{52420278834225} is an apocalyptic number.

52420278834225 is the 7240185-th square number.

52420278834225 is the 3620093-rd centered octagonal number.

It is an amenable number.

52420278834225 is a deficient number, since it is larger than the sum of its proper divisors (47753181271024).

52420278834225 is an frugal number, since it uses more digits than its factorization.

52420278834225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 54.

The spelling of 52420278834225 in words is "fifty-two trillion, four hundred twenty billion, two hundred seventy-eight million, eight hundred thirty-four thousand, two hundred twenty-five".