520522307 has 2 divisors, whose sum is σ = 520522308. Its totient is φ = 520522306.

The previous prime is 520522283. The next prime is 520522391. The reversal of 520522307 is 703225025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520522307 - 2¹⁶ = 520456771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520522007) 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, 260261153 + 260261154.

It is an arithmetic number, because the mean of its divisors is an integer number (260261154).

Almost surely, 2^520522307 is an apocalyptic number.

520522307 is a deficient number, since it is larger than the sum of its proper divisors (1).

520522307 is an equidigital number, since it uses as much as digits as its factorization.

520522307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 520522307 is about 22814.9579662116. The cubic root of 520522307 is about 804.4142992149.

The spelling of 520522307 in words is "five hundred twenty million, five hundred twenty-two thousand, three hundred seven".