520437713 has 2 divisors, whose sum is σ = 520437714. Its totient is φ = 520437712.

The previous prime is 520437653. The next prime is 520437727. The reversal of 520437713 is 317734025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509991889 + 10445824 = 22583^2 + 3232^2 .

It is a cyclic number.

It is not a de Polignac number, because 520437713 - 2²⁴ = 503660497 is a prime.

It is a super-2 number, since 2×520437713² = 541710826225340738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520437713.

It is not a weakly prime, because it can be changed into another prime (520437773) 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 as a sum of consecutive naturals, namely, 260218856 + 260218857.

It is an arithmetic number, because the mean of its divisors is an integer number (260218857).

Almost surely, 2^520437713 is an apocalyptic number.

It is an amenable number.

520437713 is a deficient number, since it is larger than the sum of its proper divisors (1).

520437713 is an equidigital number, since it uses as much as digits as its factorization.

520437713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 520437713 is about 22813.1039755663. The cubic root of 520437713 is about 804.3707197122.

The spelling of 520437713 in words is "five hundred twenty million, four hundred thirty-seven thousand, seven hundred thirteen".