550443 has 16 divisors (see below), whose sum is σ = 798336.
Its totient is φ = 336000.
The previous prime is 550441. The next prime is 550447. The reversal of 550443 is 344055.
Adding to 550443 its reverse (344055), we get a palindrome (894498).
It is a happy number.
It is not a de Polignac number, because 550443 - 21 = 550441 is a prime.
550443 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (550441) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068 + ... + 2318.
It is an arithmetic number, because the mean of its divisors is an integer number (49896).
2550443 is an apocalyptic number.
550443 is a deficient number, since it is larger than the sum of its proper divisors (247893).
550443 is a wasteful number, since it uses less digits than its factorization.
550443 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 314.
The product of its (nonzero) digits is 1200, while the sum is 21.
The square root of 550443 is about 741.9184591315.
The cubic root of 550443 is about 81.9541186914.
The spelling of 550443 in words is "five hundred fifty thousand, four hundred forty-three".