520664222 has 16 divisors (see below), whose sum is σ = 863806272. Its totient is φ = 233811360.

The previous prime is 520664161. The next prime is 520664237. The reversal of 520664222 is 222466025.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269654 + ... + 271577.

It is an arithmetic number, because the mean of its divisors is an integer number (53987892).

Almost surely, 2^520664222 is an apocalyptic number.

520664222 is a deficient number, since it is larger than the sum of its proper divisors (343142050).

520664222 is a wasteful number, since it uses less digits than its factorization.

520664222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541283.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 520664222 is about 22818.0678849021. The cubic root of 520664222 is about 804.4873976397.

The spelling of 520664222 in words is "five hundred twenty million, six hundred sixty-four thousand, two hundred twenty-two".