520513222 has 8 divisors (see below), whose sum is σ = 794003400. Its totient is φ = 255845424.

The previous prime is 520513181. The next prime is 520513229. The reversal of 520513222 is 222315025.

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 = 520513193 and 520513202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520513229) 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, 2205447 + ... + 2205682.

It is an arithmetic number, because the mean of its divisors is an integer number (99250425).

Almost surely, 2^520513222 is an apocalyptic number.

520513222 is a deficient number, since it is larger than the sum of its proper divisors (273490178).

520513222 is a wasteful number, since it uses less digits than its factorization.

520513222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411190.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520513222 is about 22814.7588635076. The cubic root of 520513222 is about 804.4096192065.

Adding to 520513222 its reverse (222315025), we get a palindrome (742828247).

The spelling of 520513222 in words is "five hundred twenty million, five hundred thirteen thousand, two hundred twenty-two".