520456943 has 2 divisors, whose sum is σ = 520456944. Its totient is φ = 520456942.

The previous prime is 520456927. The next prime is 520456961. The reversal of 520456943 is 349654025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520456943 - 2⁴ = 520456927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520456897 and 520456906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520456913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260228471 + 260228472.

It is an arithmetic number, because the mean of its divisors is an integer number (260228472).

Almost surely, 2^520456943 is an apocalyptic number.

520456943 is a deficient number, since it is larger than the sum of its proper divisors (1).

520456943 is an equidigital number, since it uses as much as digits as its factorization.

520456943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 520456943 is about 22813.5254399665. The cubic root of 520456943 is about 804.3806266668.

The spelling of 520456943 in words is "five hundred twenty million, four hundred fifty-six thousand, nine hundred forty-three".