520457212 has 24 divisors (see below), whose sum is σ = 994199472. Its totient is φ = 236428800.

The previous prime is 520457173. The next prime is 520457213. The reversal of 520457212 is 212754025.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520457213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113068 + ... + 117580.

It is an arithmetic number, because the mean of its divisors is an integer number (41424978).

Almost surely, 2^520457212 is an apocalyptic number.

It is an amenable number.

520457212 is a deficient number, since it is larger than the sum of its proper divisors (473742260).

520457212 is a wasteful number, since it uses less digits than its factorization.

520457212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149 (or 7147 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 520457212 is about 22813.5313355912. The cubic root of 520457212 is about 804.3807652491.

The spelling of 520457212 in words is "five hundred twenty million, four hundred fifty-seven thousand, two hundred twelve".