520523023 has 2 divisors, whose sum is σ = 520523024. Its totient is φ = 520523022.

The previous prime is 520523009. The next prime is 520523033. The reversal of 520523023 is 320325025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520523023 - 2⁵ = 520522991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520522985 and 520523003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520523033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260261511 + 260261512.

It is an arithmetic number, because the mean of its divisors is an integer number (260261512).

Almost surely, 2^520523023 is an apocalyptic number.

520523023 is a deficient number, since it is larger than the sum of its proper divisors (1).

520523023 is an equidigital number, since it uses as much as digits as its factorization.

520523023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 520523023 is about 22814.9736576661. The cubic root of 520523023 is about 804.4146680498.

Adding to 520523023 its reverse (320325025), we get a palindrome (840848048).

The spelling of 520523023 in words is "five hundred twenty million, five hundred twenty-three thousand, twenty-three".