550231 has 4 divisors (see below), whose sum is σ = 600264. Its totient is φ = 500200.

The previous prime is 550213. The next prime is 550241. The reversal of 550231 is 132055.

550231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 550231 - 2⁹ = 549719 is a prime.

It is a super-2 number, since 2×550231² = 605508306722, which contains 22 as substring.

It is a Duffinian number.

550231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25000 + ... + 25021.

It is an arithmetic number, because the mean of its divisors is an integer number (150066).

2⁵⁵⁰²³¹ is an apocalyptic number.

550231 is a deficient number, since it is larger than the sum of its proper divisors (50033).

550231 is a wasteful number, since it uses less digits than its factorization.

550231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50032.

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

The square root of 550231 is about 741.7755725285. The cubic root of 550231 is about 81.9435959524.

Adding to 550231 its reverse (132055), we get a palindrome (682286).

The spelling of 550231 in words is "five hundred fifty thousand, two hundred thirty-one".