52218506902 has 8 divisors (see below), whose sum is σ = 78448825296. Its totient is φ = 26068898472.

The previous prime is 52218506861. The next prime is 52218506929. The reversal of 52218506902 is 20960581225.

52218506902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-5 number, since 5×52218506902⁵ (a number of 55 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20175873 + ... + 20178460.

It is an arithmetic number, because the mean of its divisors is an integer number (9806103162).

Almost surely, 2^52218506902 is an apocalyptic number.

52218506902 is a deficient number, since it is larger than the sum of its proper divisors (26230318394).

52218506902 is a wasteful number, since it uses less digits than its factorization.

52218506902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40354982.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 52218506902 in words is "fifty-two billion, two hundred eighteen million, five hundred six thousand, nine hundred two".