520023533 has 2 divisors, whose sum is σ = 520023534. Its totient is φ = 520023532.

The previous prime is 520023527. The next prime is 520023547. The reversal of 520023533 is 335320025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459759364 + 60264169 = 21442^2 + 7763^2 .

It is a cyclic number.

It is not a de Polignac number, because 520023533 - 2⁸ = 520023277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520023499 and 520023508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520025533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260011766 + 260011767.

It is an arithmetic number, because the mean of its divisors is an integer number (260011767).

Almost surely, 2^520023533 is an apocalyptic number.

It is an amenable number.

520023533 is a deficient number, since it is larger than the sum of its proper divisors (1).

520023533 is an equidigital number, since it uses as much as digits as its factorization.

520023533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 520023533 is about 22804.0244913042. The cubic root of 520023533 is about 804.1572822706.

Adding to 520023533 its reverse (335320025), we get a palindrome (855343558).

The spelling of 520023533 in words is "five hundred twenty million, twenty-three thousand, five hundred thirty-three".