520106212 has 24 divisors (see below), whose sum is σ = 918189440. Its totient is φ = 257774400.

The previous prime is 520106149. The next prime is 520106219. The reversal of 520106212 is 212601025.

It is a self number, because there is not a number n which added to its sum of digits gives 520106212.

It is not an unprimeable number, because it can be changed into a prime (520106219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554608 + ... + 555544.

Almost surely, 2^520106212 is an apocalyptic number.

It is an amenable number.

520106212 is a deficient number, since it is larger than the sum of its proper divisors (398083228).

520106212 is a wasteful number, since it uses less digits than its factorization.

520106212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 520106212 is about 22805.8372352343. The cubic root of 520106212 is about 804.1998979040.

Adding to 520106212 its reverse (212601025), we get a palindrome (732707237).

The spelling of 520106212 in words is "five hundred twenty million, one hundred six thousand, two hundred twelve".