52516217561566 has 32 divisors (see below), whose sum is σ = 86088843211392. Its totient is φ = 23828481502560.

The previous prime is 52516217561543. The next prime is 52516217561573. The reversal of 52516217561566 is 66516571261525.

It is a self number, because there is not a number n which added to its sum of digits gives 52516217561566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30958800 + ... + 32611036.

It is an arithmetic number, because the mean of its divisors is an integer number (2690276350356).

Almost surely, 2^{52516217561566} is an apocalyptic number.

52516217561566 is a deficient number, since it is larger than the sum of its proper divisors (33572625649826).

52516217561566 is a wasteful number, since it uses less digits than its factorization.

52516217561566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654824.

The product of its digits is 22680000, while the sum is 58.

The spelling of 52516217561566 in words is "fifty-two trillion, five hundred sixteen billion, two hundred seventeen million, five hundred sixty-one thousand, five hundred sixty-six".