550030503 has 16 divisors (see below), whose sum is σ = 805147776. Its totient is φ = 331225440.

The previous prime is 550030471. The next prime is 550030511. The reversal of 550030503 is 305030055.

It is not a de Polignac number, because 550030503 - 2⁵ = 550030471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550030503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550030603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47901 + ... + 58262.

It is an arithmetic number, because the mean of its divisors is an integer number (50321736).

Almost surely, 2^550030503 is an apocalyptic number.

550030503 is a deficient number, since it is larger than the sum of its proper divisors (255117273).

550030503 is a wasteful number, since it uses less digits than its factorization.

550030503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106334.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 550030503 is about 23452.7291162457. The cubic root of 550030503 is about 819.3364168399.

Adding to 550030503 its reverse (305030055), we get a palindrome (855060558).

The spelling of 550030503 in words is "five hundred fifty million, thirty thousand, five hundred three".