220520563 has 2 divisors, whose sum is σ = 220520564. Its totient is φ = 220520562.

The previous prime is 220520561. The next prime is 220520567. The reversal of 220520563 is 365025022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220520563 - 2¹ = 220520561 is a prime.

Together with 220520561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220520561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110260281 + 110260282.

It is an arithmetic number, because the mean of its divisors is an integer number (110260282).

Almost surely, 2^220520563 is an apocalyptic number.

220520563 is a deficient number, since it is larger than the sum of its proper divisors (1).

220520563 is an equidigital number, since it uses as much as digits as its factorization.

220520563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 220520563 is about 14849.9347810016. The cubic root of 220520563 is about 604.1568410948.

Adding to 220520563 its reverse (365025022), we get a palindrome (585545585).

The spelling of 220520563 in words is "two hundred twenty million, five hundred twenty thousand, five hundred sixty-three".