520506207 has 24 divisors (see below), whose sum is σ = 811915104. Its totient is φ = 319425984.

The previous prime is 520506157. The next prime is 520506209. The reversal of 520506207 is 702605025.

It is not a de Polignac number, because 520506207 - 2⁶ = 520506143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520506209) 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 23 ways as a sum of consecutive naturals, for example, 37678 + ... + 49604.

It is an arithmetic number, because the mean of its divisors is an integer number (33829796).

Almost surely, 2^520506207 is an apocalyptic number.

520506207 is a deficient number, since it is larger than the sum of its proper divisors (291408897).

520506207 is a wasteful number, since it uses less digits than its factorization.

520506207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319 (or 12316 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 520506207 is about 22814.6051247879. The cubic root of 520506207 is about 804.4060054918.

The spelling of 520506207 in words is "five hundred twenty million, five hundred six thousand, two hundred seven".