52271216565 has 16 divisors (see below), whose sum is σ = 88553590848. Its totient is φ = 26238100736.

The previous prime is 52271216549. The next prime is 52271216579. The reversal of 52271216565 is 56561217225.

It is a cyclic number.

It is not a de Polignac number, because 52271216565 - 2⁴ = 52271216549 is a prime.

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, 102492327 + ... + 102492836.

It is an arithmetic number, because the mean of its divisors is an integer number (5534599428).

Almost surely, 2^52271216565 is an apocalyptic number.

It is an amenable number.

52271216565 is a deficient number, since it is larger than the sum of its proper divisors (36282374283).

52271216565 is a wasteful number, since it uses less digits than its factorization.

52271216565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204985188.

The product of its digits is 252000, while the sum is 42.

The spelling of 52271216565 in words is "fifty-two billion, two hundred seventy-one million, two hundred sixteen thousand, five hundred sixty-five".