520801297 has 2 divisors, whose sum is σ = 520801298. Its totient is φ = 520801296.

The previous prime is 520801291. The next prime is 520801321. The reversal of 520801297 is 792108025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516152961 + 4648336 = 22719^2 + 2156^2 .

It is a cyclic number.

It is not a de Polignac number, because 520801297 - 2³ = 520801289 is a prime.

It is not a weakly prime, because it can be changed into another prime (520801291) 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, 260400648 + 260400649.

It is an arithmetic number, because the mean of its divisors is an integer number (260400649).

Almost surely, 2^520801297 is an apocalyptic number.

It is an amenable number.

520801297 is a deficient number, since it is larger than the sum of its proper divisors (1).

520801297 is an equidigital number, since it uses as much as digits as its factorization.

520801297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 520801297 is about 22821.0713376914. The cubic root of 520801297 is about 804.5579904386.

The spelling of 520801297 in words is "five hundred twenty million, eight hundred one thousand, two hundred ninety-seven".