52539866717 has 24 divisors (see below), whose sum is σ = 59912256096. Its totient is φ = 45794877984.

The previous prime is 52539866671. The next prime is 52539866723. The reversal of 52539866717 is 71766893525.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-52539866717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52539866417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1422518 + ... + 1458984.

It is an arithmetic number, because the mean of its divisors is an integer number (2496344004).

Almost surely, 2^52539866717 is an apocalyptic number.

It is an amenable number.

52539866717 is a deficient number, since it is larger than the sum of its proper divisors (7372389379).

52539866717 is a wasteful number, since it uses less digits than its factorization.

52539866717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36825 (or 36806 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 59.

The spelling of 52539866717 in words is "fifty-two billion, five hundred thirty-nine million, eight hundred sixty-six thousand, seven hundred seventeen".