520663763 has 2 divisors, whose sum is σ = 520663764. Its totient is φ = 520663762.

The previous prime is 520663747. The next prime is 520663921. The reversal of 520663763 is 367366025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520663763 - 2⁴ = 520663747 is a prime.

It is not a weakly prime, because it can be changed into another prime (520663733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260331881 + 260331882.

It is an arithmetic number, because the mean of its divisors is an integer number (260331882).

Almost surely, 2^520663763 is an apocalyptic number.

520663763 is a deficient number, since it is larger than the sum of its proper divisors (1).

520663763 is an equidigital number, since it uses as much as digits as its factorization.

520663763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 38.

The square root of 520663763 is about 22818.0578270807. The cubic root of 520663763 is about 804.4871612367.

The spelling of 520663763 in words is "five hundred twenty million, six hundred sixty-three thousand, seven hundred sixty-three".