550143 has 12 divisors (see below), whose sum is σ = 867048. Its totient is φ = 333360.

The previous prime is 550139. The next prime is 550163. The reversal of 550143 is 341055.

It is not a de Polignac number, because 550143 - 2² = 550139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2680 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (72254).

2⁵⁵⁰¹⁴³ is an apocalyptic number.

550143 is a deficient number, since it is larger than the sum of its proper divisors (316905).

550143 is a wasteful number, since it uses less digits than its factorization.

550143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5574 (or 5571 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 550143 is about 741.7162530240. The cubic root of 550143 is about 81.9392272291.

Adding to 550143 its reverse (341055), we get a palindrome (891198).

The spelling of 550143 in words is "five hundred fifty thousand, one hundred forty-three".