500223021 has 16 divisors (see below), whose sum is σ = 710774784. Its totient is φ = 312193904.

The previous prime is 500222981. The next prime is 500223043. The reversal of 500223021 is 120322005.

It is not a de Polignac number, because 500223021 - 2¹⁵ = 500190253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500223071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73881 + ... + 80366.

It is an arithmetic number, because the mean of its divisors is an integer number (44423424).

Almost surely, 2^500223021 is an apocalyptic number.

It is an amenable number.

500223021 is a deficient number, since it is larger than the sum of its proper divisors (210551763).

500223021 is a wasteful number, since it uses less digits than its factorization.

500223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154320.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 500223021 is about 22365.6661201941. Note that the first 3 decimals coincide. The cubic root of 500223021 is about 793.8185163663.

Adding to 500223021 its reverse (120322005), we get a palindrome (620545026).

The spelling of 500223021 in words is "five hundred million, two hundred twenty-three thousand, twenty-one".