5503 has 2 divisors, whose sum is σ = 5504.
Its totient is φ = 5502.
The previous prime is 5501. The next prime is 5507. The reversal of 5503 is 3055.
Adding to 5503 its reverse (3055), we get a palindrome (8558).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 5503 - 21 = 5501 is a prime.
Together with 5501, it forms a pair of twin primes.
5503 is a lucky number.
It is a plaindrome in base 4, base 8 and base 16.
It is a zygodrome in base 4.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5501) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751 + 2752.
It is an arithmetic number, because the mean of its divisors is an integer number (2752).
25503 is an apocalyptic number.
5503 is a deficient number, since it is larger than the sum of its proper divisors (1).
5503 is an equidigital number, since it uses as much as digits as its factorization.
5503 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 75, while the sum is 13.
The square root of 5503 is about 74.1822081095.
The cubic root of 5503 is about 17.6549505009.
The spelling of 5503 in words is "five thousand, five hundred three".