3503 has 4 divisors (see below), whose sum is σ = 3648. Its totient is φ = 3360.

The previous prime is 3499. The next prime is 3511. The reversal of 3503 is 3053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3053 = 43 ⋅71.

It is a cyclic number.

It is not a de Polignac number, because 3503 - 2² = 3499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 87.

It is an arithmetic number, because the mean of its divisors is an integer number (912).

2³⁵⁰³ is an apocalyptic number.

3503 is a deficient number, since it is larger than the sum of its proper divisors (145).

3503 is a wasteful number, since it uses less digits than its factorization.

3503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144.

The product of its (nonzero) digits is 45, while the sum is 11.

The square root of 3503 is about 59.1861470278. The cubic root of 3503 is about 15.1872816048.

Adding to 3503 its reverse (3053), we get a palindrome (6556).

It can be divided in two parts, 350 and 3, that added together give a palindrome (353).

The spelling of 3503 in words is "three thousand, five hundred three".