52111566173 has 2 divisors, whose sum is σ = 52111566174. Its totient is φ = 52111566172.

The previous prime is 52111566163. The next prime is 52111566193. The reversal of 52111566173 is 37166511125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49694663929 + 2416902244 = 222923^2 + 49162^2 .

It is a cyclic number.

It is not a de Polignac number, because 52111566173 - 2⁸ = 52111565917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52111566103) 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, 26055783086 + 26055783087.

It is an arithmetic number, because the mean of its divisors is an integer number (26055783087).

Almost surely, 2^52111566173 is an apocalyptic number.

It is an amenable number.

52111566173 is a deficient number, since it is larger than the sum of its proper divisors (1).

52111566173 is an equidigital number, since it uses as much as digits as its factorization.

52111566173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 38.

The spelling of 52111566173 in words is "fifty-two billion, one hundred eleven million, five hundred sixty-six thousand, one hundred seventy-three".