504999503 has 2 divisors, whose sum is σ = 504999504. Its totient is φ = 504999502.

The previous prime is 504999497. The next prime is 504999511. The reversal of 504999503 is 305999405.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 504999503 - 2⁴ = 504999487 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 (504999203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252499751 + 252499752.

It is an arithmetic number, because the mean of its divisors is an integer number (252499752).

Almost surely, 2^504999503 is an apocalyptic number.

504999503 is a deficient number, since it is larger than the sum of its proper divisors (1).

504999503 is an equidigital number, since it uses as much as digits as its factorization.

504999503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 504999503 is about 22472.1939961366. The cubic root of 504999503 is about 796.3371629381.

The spelling of 504999503 in words is "five hundred four million, nine hundred ninety-nine thousand, five hundred three".