520331222 has 8 divisors (see below), whose sum is σ = 801591456. Its totient is φ = 253134072.

The previous prime is 520331221. The next prime is 520331237. The reversal of 520331222 is 222133025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 520331194 and 520331203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520331221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3515678 + ... + 3515825.

It is an arithmetic number, because the mean of its divisors is an integer number (100198932).

Almost surely, 2^520331222 is an apocalyptic number.

520331222 is a deficient number, since it is larger than the sum of its proper divisors (281260234).

520331222 is a wasteful number, since it uses less digits than its factorization.

520331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031542.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520331222 is about 22810.7698686388. The cubic root of 520331222 is about 804.3158530213.

Adding to 520331222 its reverse (222133025), we get a palindrome (742464247).

The spelling of 520331222 in words is "five hundred twenty million, three hundred thirty-one thousand, two hundred twenty-two".