550305231 has 24 divisors (see below), whose sum is σ = 864357120. Its totient is φ = 310473072.

The previous prime is 550305229. The next prime is 550305241. The reversal of 550305231 is 132503055.

It is not a de Polignac number, because 550305231 - 2¹ = 550305229 is a prime.

It is a super-2 number, since 2×550305231² = 605671694531926722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550305221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12081 + ... + 35306.

It is an arithmetic number, because the mean of its divisors is an integer number (36014880).

Almost surely, 2^550305231 is an apocalyptic number.

550305231 is a deficient number, since it is larger than the sum of its proper divisors (314051889).

550305231 is a wasteful number, since it uses less digits than its factorization.

550305231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47483 (or 47476 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 550305231 is about 23458.5854432871. The cubic root of 550305231 is about 819.4728075720.

Adding to 550305231 its reverse (132503055), we get a palindrome (682808286).

The spelling of 550305231 in words is "five hundred fifty million, three hundred five thousand, two hundred thirty-one".