520306463 has 2 divisors, whose sum is σ = 520306464. Its totient is φ = 520306462.

The previous prime is 520306411. The next prime is 520306517. The reversal of 520306463 is 364603025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520306463 - 2⁶ = 520306399 is a prime.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520300463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260153231 + 260153232.

It is an arithmetic number, because the mean of its divisors is an integer number (260153232).

Almost surely, 2^520306463 is an apocalyptic number.

520306463 is a deficient number, since it is larger than the sum of its proper divisors (1).

520306463 is an equidigital number, since it uses as much as digits as its factorization.

520306463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 520306463 is about 22810.2271580096. The cubic root of 520306463 is about 804.3030955242.

Adding to 520306463 its reverse (364603025), we get a palindrome (884909488).

The spelling of 520306463 in words is "five hundred twenty million, three hundred six thousand, four hundred sixty-three".