553220503 has 16 divisors (see below), whose sum is σ = 631411200. Its totient is φ = 480203200.

The previous prime is 553220497. The next prime is 553220537. The reversal of 553220503 is 305022355.

It is a cyclic number.

It is not a de Polignac number, because 553220503 - 2⁵ = 553220471 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 (553220543) 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 in 15 ways as a sum of consecutive naturals, for example, 8148 + ... + 34246.

It is an arithmetic number, because the mean of its divisors is an integer number (39463200).

Almost surely, 2^553220503 is an apocalyptic number.

553220503 is a deficient number, since it is larger than the sum of its proper divisors (78190697).

553220503 is a wasteful number, since it uses less digits than its factorization.

553220503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26198.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 553220503 is about 23520.6399360221. The cubic root of 553220503 is about 820.9173270698.

Adding to 553220503 its reverse (305022355), we get a palindrome (858242858).

The spelling of 553220503 in words is "five hundred fifty-three million, two hundred twenty thousand, five hundred three".