520297 has 2 divisors, whose sum is σ = 520298. Its totient is φ = 520296.

The previous prime is 520291. The next prime is 520307. The reversal of 520297 is 792025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 52441 = 684^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 520297 - 2¹¹ = 518249 is a prime.

It is not a weakly prime, because it can be changed into another prime (520291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260148 + 260149.

It is an arithmetic number, because the mean of its divisors is an integer number (260149).

2⁵²⁰²⁹⁷ is an apocalyptic number.

It is an amenable number.

520297 is a deficient number, since it is larger than the sum of its proper divisors (1).

520297 is an equidigital number, since it uses as much as digits as its factorization.

520297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 520297 is about 721.3161581443. The cubic root of 520297 is about 80.4298219445.

It can be divided in two parts, 5 and 20297, that added together give a palindrome (20302).

The spelling of 520297 in words is "five hundred twenty thousand, two hundred ninety-seven".