550028303 has 4 divisors (see below), whose sum is σ = 600030888. Its totient is φ = 500025720.

The previous prime is 550028231. The next prime is 550028309. The reversal of 550028303 is 303820055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550028303 - 2²⁰ = 548979727 is a prime.

It is a super-2 number, since 2×550028303² = 605062268202119618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550028309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25001276 + ... + 25001297.

It is an arithmetic number, because the mean of its divisors is an integer number (150007722).

Almost surely, 2^550028303 is an apocalyptic number.

550028303 is a deficient number, since it is larger than the sum of its proper divisors (50002585).

550028303 is a wasteful number, since it uses less digits than its factorization.

550028303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50002584.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 550028303 is about 23452.6822133418. The cubic root of 550028303 is about 819.3353244504.

Adding to 550028303 its reverse (303820055), we get a palindrome (853848358).

The spelling of 550028303 in words is "five hundred fifty million, twenty-eight thousand, three hundred three".