520562563 has 2 divisors, whose sum is σ = 520562564. Its totient is φ = 520562562.

The previous prime is 520562533. The next prime is 520562569. The reversal of 520562563 is 365265025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520562563 is a prime.

It is not a weakly prime, because it can be changed into another prime (520562569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260281281 + 260281282.

It is an arithmetic number, because the mean of its divisors is an integer number (260281282).

Almost surely, 2^520562563 is an apocalyptic number.

520562563 is a deficient number, since it is larger than the sum of its proper divisors (1).

520562563 is an equidigital number, since it uses as much as digits as its factorization.

520562563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 520562563 is about 22815.8401773855. The cubic root of 520562563 is about 804.4350358653.

It can be divided in two parts, 520562 and 563, that added together give a palindrome (521125).

The spelling of 520562563 in words is "five hundred twenty million, five hundred sixty-two thousand, five hundred sixty-three".