520530212 has 6 divisors (see below), whose sum is σ = 910927878. Its totient is φ = 260265104.

The previous prime is 520530211. The next prime is 520530239. The reversal of 520530212 is 212035025.

It can be written as a sum of positive squares in only one way, i.e., 453519616 + 67010596 = 21296^2 + 8186^2 .

It is not an unprimeable number, because it can be changed into a prime (520530211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65066273 + ... + 65066280.

It is an arithmetic number, because the mean of its divisors is an integer number (151821313).

Almost surely, 2^520530212 is an apocalyptic number.

It is an amenable number.

520530212 is a deficient number, since it is larger than the sum of its proper divisors (390397666).

520530212 is a wasteful number, since it uses less digits than its factorization.

520530212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130132557 (or 130132555 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 520530212 is about 22815.1312071616. The cubic root of 520530212 is about 804.4183713189.

Adding to 520530212 its reverse (212035025), we get a palindrome (732565237).

The spelling of 520530212 in words is "five hundred twenty million, five hundred thirty thousand, two hundred twelve".