520065311 has 2 divisors, whose sum is σ = 520065312. Its totient is φ = 520065310.

The previous prime is 520065277. The next prime is 520065317. The reversal of 520065311 is 113560025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520065311 - 2¹⁴ = 520048927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520065317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260032655 + 260032656.

It is an arithmetic number, because the mean of its divisors is an integer number (260032656).

Almost surely, 2^520065311 is an apocalyptic number.

520065311 is a deficient number, since it is larger than the sum of its proper divisors (1).

520065311 is an equidigital number, since it uses as much as digits as its factorization.

520065311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 520065311 is about 22804.9404954277. The cubic root of 520065311 is about 804.1788166700.

The spelling of 520065311 in words is "five hundred twenty million, sixty-five thousand, three hundred eleven".