550123 has 12 divisors (see below), whose sum is σ = 652080. Its totient is φ = 462672.

The previous prime is 550117. The next prime is 550127. The reversal of 550123 is 321055.

550123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550123 - 2¹⁷ = 419051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550097 and 550106.

It is not an unprimeable number, because it can be changed into a prime (550127) 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, 4993 + ... + 5101.

It is an arithmetic number, because the mean of its divisors is an integer number (54340).

2⁵⁵⁰¹²³ is an apocalyptic number.

550123 is a deficient number, since it is larger than the sum of its proper divisors (101957).

550123 is a wasteful number, since it uses less digits than its factorization.

550123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 550123 is about 741.7027706568. The cubic root of 550123 is about 81.9382342725.

Adding to 550123 its reverse (321055), we get a palindrome (871178).

The spelling of 550123 in words is "five hundred fifty thousand, one hundred twenty-three".