520023263 has 2 divisors, whose sum is σ = 520023264. Its totient is φ = 520023262.

The previous prime is 520023211. The next prime is 520023277. The reversal of 520023263 is 362320025.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520023263 - 2⁶ = 520023199 is a prime.

It is a super-2 number, since 2×520023263² = 540848388122334338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520026263) 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, 260011631 + 260011632.

It is an arithmetic number, because the mean of its divisors is an integer number (260011632).

Almost surely, 2^520023263 is an apocalyptic number.

520023263 is a deficient number, since it is larger than the sum of its proper divisors (1).

520023263 is an equidigital number, since it uses as much as digits as its factorization.

520023263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 520023263 is about 22804.0185712957. The cubic root of 520023263 is about 804.1571430958.

Adding to 520023263 its reverse (362320025), we get a palindrome (882343288).

The spelling of 520023263 in words is "five hundred twenty million, twenty-three thousand, two hundred sixty-three".