520965073 has 2 divisors, whose sum is σ = 520965074. Its totient is φ = 520965072.

The previous prime is 520965041. The next prime is 520965097. The reversal of 520965073 is 370569025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377252929 + 143712144 = 19423^2 + 11988^2 .

It is a cyclic number.

It is not a de Polignac number, because 520965073 - 2⁵ = 520965041 is a prime.

It is not a weakly prime, because it can be changed into another prime (520965023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260482536 + 260482537.

It is an arithmetic number, because the mean of its divisors is an integer number (260482537).

Almost surely, 2^520965073 is an apocalyptic number.

It is an amenable number.

520965073 is a deficient number, since it is larger than the sum of its proper divisors (1).

520965073 is an equidigital number, since it uses as much as digits as its factorization.

520965073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 520965073 is about 22824.6593183776. The cubic root of 520965073 is about 804.6423178525.

The spelling of 520965073 in words is "five hundred twenty million, nine hundred sixty-five thousand, seventy-three".