It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-5303 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a plaindrome in base 8 and base 15.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 5303.
25303 is an apocalyptic number.
5303 is an equidigital number, since it uses as much as digits as its factorization.
5303 is an evil number, because the sum of its binary digits is even.
The square root of 5303 is about 72.8217000626. The cubic root of 5303 is about 17.4384230401.
Adding to 5303 its reverse (3035), we get a palindrome (8338).
The spelling of 5303 in words is "five thousand, three hundred three".