220740503 has 2 divisors, whose sum is σ = 220740504. Its totient is φ = 220740502.

The previous prime is 220740497. The next prime is 220740521. The reversal of 220740503 is 305047022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220740503 - 2⁶ = 220740439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220740103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110370251 + 110370252.

It is an arithmetic number, because the mean of its divisors is an integer number (110370252).

Almost surely, 2^220740503 is an apocalyptic number.

220740503 is a deficient number, since it is larger than the sum of its proper divisors (1).

220740503 is an equidigital number, since it uses as much as digits as its factorization.

220740503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 220740503 is about 14857.3383551698. The cubic root of 220740503 is about 604.3576297834.

Adding to 220740503 its reverse (305047022), we get a palindrome (525787525).

The spelling of 220740503 in words is "two hundred twenty million, seven hundred forty thousand, five hundred three".