503303 has 2 divisors, whose sum is σ = 503304. Its totient is φ = 503302.

The previous prime is 503297. The next prime is 503317. The reversal of 503303 is 303305.

It is an a-pointer prime, because the next prime (503317) can be obtained adding 503303 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503303 - 2⁴ = 503287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251651 + 251652.

It is an arithmetic number, because the mean of its divisors is an integer number (251652).

2⁵⁰³³⁰³ is an apocalyptic number.

503303 is a deficient number, since it is larger than the sum of its proper divisors (1).

503303 is an equidigital number, since it uses as much as digits as its factorization.

503303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 14.

The square root of 503303 is about 709.4385103728. The cubic root of 503303 is about 79.5444420106.

Adding to 503303 its reverse (303305), we get a palindrome (806608).

The spelling of 503303 in words is "five hundred three thousand, three hundred three".