52537968862861 has 2 divisors, whose sum is σ = 52537968862862. Its totient is φ = 52537968862860.

The previous prime is 52537968862843. The next prime is 52537968862913. The reversal of 52537968862861 is 16826886973525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48878135864100 + 3659832998761 = 6991290^2 + 1913069^2 .

It is a cyclic number.

It is not a de Polignac number, because 52537968862861 - 2¹⁵ = 52537968830093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52537968862801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26268984431430 + 26268984431431.

It is an arithmetic number, because the mean of its divisors is an integer number (26268984431431).

Almost surely, 2^{52537968862861} is an apocalyptic number.

It is an amenable number.

52537968862861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52537968862861 is an equidigital number, since it uses as much as digits as its factorization.

52537968862861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2090188800, while the sum is 76.

The spelling of 52537968862861 in words is "fifty-two trillion, five hundred thirty-seven billion, nine hundred sixty-eight million, eight hundred sixty-two thousand, eight hundred sixty-one".