520633 has 2 divisors, whose sum is σ = 520634. Its totient is φ = 520632.

The previous prime is 520631. The next prime is 520649. The reversal of 520633 is 336025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506944 + 13689 = 712^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 520633 - 2¹ = 520631 is a prime.

Together with 520631, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 520633.

It is not a weakly prime, because it can be changed into another prime (520631) 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, 260316 + 260317.

It is an arithmetic number, because the mean of its divisors is an integer number (260317).

2⁵²⁰⁶³³ is an apocalyptic number.

It is an amenable number.

520633 is a deficient number, since it is larger than the sum of its proper divisors (1).

520633 is an equidigital number, since it uses as much as digits as its factorization.

520633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 520633 is about 721.5490281332. The cubic root of 520633 is about 80.4471316765.

Adding to 520633 its reverse (336025), we get a palindrome (856658).

The spelling of 520633 in words is "five hundred twenty thousand, six hundred thirty-three".