220520603 has 2 divisors, whose sum is σ = 220520604. Its totient is φ = 220520602.

The previous prime is 220520567. The next prime is 220520609. The reversal of 220520603 is 306025022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220520603 - 2⁶ = 220520539 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220520609) 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, 110260301 + 110260302.

It is an arithmetic number, because the mean of its divisors is an integer number (110260302).

Almost surely, 2^220520603 is an apocalyptic number.

220520603 is a deficient number, since it is larger than the sum of its proper divisors (1).

220520603 is an equidigital number, since it uses as much as digits as its factorization.

220520603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 220520603 is about 14849.9361278088. The cubic root of 220520603 is about 604.1568776239.

Adding to 220520603 its reverse (306025022), we get a palindrome (526545625).

The spelling of 220520603 in words is "two hundred twenty million, five hundred twenty thousand, six hundred three".