520073 has 2 divisors, whose sum is σ = 520074. Its totient is φ = 520072.

The previous prime is 520067. The next prime is 520103. The reversal of 520073 is 370025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478864 + 41209 = 692^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 520073 - 2⁸ = 519817 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (520043) 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, 260036 + 260037.

It is an arithmetic number, because the mean of its divisors is an integer number (260037).

2⁵²⁰⁰⁷³ is an apocalyptic number.

It is an amenable number.

520073 is a deficient number, since it is larger than the sum of its proper divisors (1).

520073 is an equidigital number, since it uses as much as digits as its factorization.

520073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 520073 is about 721.1608697094. The cubic root of 520073 is about 80.4182779826.

Adding to 520073 its reverse (370025), we get a palindrome (890098).

The spelling of 520073 in words is "five hundred twenty thousand, seventy-three".