500221955 has 4 divisors (see below), whose sum is σ = 600266352. Its totient is φ = 400177560.

The previous prime is 500221937. The next prime is 500222011. The reversal of 500221955 is 559122005.

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

It is not a de Polignac number, because 500221955 - 2⁸ = 500221699 is a prime.

It is a Duffinian 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, 50022191 + ... + 50022200.

It is an arithmetic number, because the mean of its divisors is an integer number (150066588).

Almost surely, 2^500221955 is an apocalyptic number.

500221955 is a deficient number, since it is larger than the sum of its proper divisors (100044397).

500221955 is a wasteful number, since it uses less digits than its factorization.

500221955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100044396.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 500221955 is about 22365.6422890111. The cubic root of 500221955 is about 793.8179524770.

The spelling of 500221955 in words is "five hundred million, two hundred twenty-one thousand, nine hundred fifty-five".