506631222 has 12 divisors (see below), whose sum is σ = 1097701020. Its totient is φ = 168877068.

The previous prime is 506631179. The next prime is 506631227. The reversal of 506631222 is 222136605.

506631222 is a `hidden beast` number, since 5 + 0 + 6 + 631 + 2 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506631227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14073072 + ... + 14073107.

It is an arithmetic number, because the mean of its divisors is an integer number (91475085).

Almost surely, 2^506631222 is an apocalyptic number.

506631222 is an abundant number, since it is smaller than the sum of its proper divisors (591069798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506631222 is a wasteful number, since it uses less digits than its factorization.

506631222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28146187 (or 28146184 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 506631222 is about 22508.4700057556. The cubic root of 506631222 is about 797.1939304332.

Adding to 506631222 its reverse (222136605), we get a palindrome (728767827).

The spelling of 506631222 in words is "five hundred six million, six hundred thirty-one thousand, two hundred twenty-two".