52111385831917 has 2 divisors, whose sum is σ = 52111385831918. Its totient is φ = 52111385831916.

The previous prime is 52111385831909. The next prime is 52111385831969. The reversal of 52111385831917 is 71913858311125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42065744327721 + 10045641504196 = 6485811^2 + 3169486^2 .

It is a cyclic number.

It is not a de Polignac number, because 52111385831917 - 2³ = 52111385831909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52111385831977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26055692915958 + 26055692915959.

It is an arithmetic number, because the mean of its divisors is an integer number (26055692915959).

Almost surely, 2^{52111385831917} is an apocalyptic number.

It is an amenable number.

52111385831917 is a deficient number, since it is larger than the sum of its proper divisors (1).

52111385831917 is an equidigital number, since it uses as much as digits as its factorization.

52111385831917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 55.

The spelling of 52111385831917 in words is "fifty-two trillion, one hundred eleven billion, three hundred eighty-five million, eight hundred thirty-one thousand, nine hundred seventeen".