520530713 has 2 divisors, whose sum is σ = 520530714. Its totient is φ = 520530712.

The previous prime is 520530697. The next prime is 520530719. The reversal of 520530713 is 317035025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501625609 + 18905104 = 22397^2 + 4348^2 .

It is a cyclic number.

It is not a de Polignac number, because 520530713 - 2⁴ = 520530697 is a prime.

It is not a weakly prime, because it can be changed into another prime (520530719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260265356 + 260265357.

It is an arithmetic number, because the mean of its divisors is an integer number (260265357).

Almost surely, 2^520530713 is an apocalyptic number.

It is an amenable number.

520530713 is a deficient number, since it is larger than the sum of its proper divisors (1).

520530713 is an equidigital number, since it uses as much as digits as its factorization.

520530713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 520530713 is about 22815.1421867145. The cubic root of 520530713 is about 804.4186293977.

Adding to 520530713 its reverse (317035025), we get a palindrome (837565738).

The spelling of 520530713 in words is "five hundred twenty million, five hundred thirty thousand, seven hundred thirteen".