52302197861 has 2 divisors, whose sum is σ = 52302197862. Its totient is φ = 52302197860.

The previous prime is 52302197803. The next prime is 52302197867. The reversal of 52302197861 is 16879120325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51969864961 + 332332900 = 227969^2 + 18230^2 .

It is a cyclic number.

It is not a de Polignac number, because 52302197861 - 2¹⁸ = 52301935717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52302197867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26151098930 + 26151098931.

It is an arithmetic number, because the mean of its divisors is an integer number (26151098931).

Almost surely, 2^52302197861 is an apocalyptic number.

It is an amenable number.

52302197861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52302197861 is an equidigital number, since it uses as much as digits as its factorization.

52302197861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 52302197861 in words is "fifty-two billion, three hundred two million, one hundred ninety-seven thousand, eight hundred sixty-one".