500221 has 8 divisors (see below), whose sum is σ = 529920. Its totient is φ = 471408.

The previous prime is 500209. The next prime is 500231. The reversal of 500221 is 122005.

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 500221 - 2¹³ = 492029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 500198 and 500207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180 + ... + 1546.

It is an arithmetic number, because the mean of its divisors is an integer number (66240).

2⁵⁰⁰²²¹ is an apocalyptic number.

It is an amenable number.

500221 is a deficient number, since it is larger than the sum of its proper divisors (29699).

500221 is a wasteful number, since it uses less digits than its factorization.

500221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 500221 is about 707.2630345211. The cubic root of 500221 is about 79.3817447304.

Adding to 500221 its reverse (122005), we get a palindrome (622226).

The spelling of 500221 in words is "five hundred thousand, two hundred twenty-one".