52218516617 has 8 divisors (see below), whose sum is σ = 52338542976. Its totient is φ = 52098585552.

The previous prime is 52218516613. The next prime is 52218516619. The reversal of 52218516617 is 71661581225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52218516617 - 2² = 52218516613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52218516611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137728 + ... + 1182734.

It is an arithmetic number, because the mean of its divisors is an integer number (6542317872).

Almost surely, 2^52218516617 is an apocalyptic number.

It is an amenable number.

52218516617 is a deficient number, since it is larger than the sum of its proper divisors (120026359).

52218516617 is a wasteful number, since it uses less digits than its factorization.

52218516617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47647.

The product of its digits is 201600, while the sum is 44.

The spelling of 52218516617 in words is "fifty-two billion, two hundred eighteen million, five hundred sixteen thousand, six hundred seventeen".