50217222187 has 4 divisors (see below), whose sum is σ = 54782424216. Its totient is φ = 45652020160.

The previous prime is 50217222113. The next prime is 50217222217. The reversal of 50217222187 is 78122271205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50217222187 - 2¹⁵ = 50217189419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50217222287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282600998 + ... + 2282601019.

It is an arithmetic number, because the mean of its divisors is an integer number (13695606054).

Almost surely, 2^50217222187 is an apocalyptic number.

50217222187 is a deficient number, since it is larger than the sum of its proper divisors (4565202029).

50217222187 is a wasteful number, since it uses less digits than its factorization.

50217222187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565202028.

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 50217222187 in words is "fifty billion, two hundred seventeen million, two hundred twenty-two thousand, one hundred eighty-seven".