550009231 has 8 divisors (see below), whose sum is σ = 564496560. Its totient is φ = 535706688.

The previous prime is 550009217. The next prime is 550009237. The reversal of 550009231 is 132900055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550009231 - 2⁵ = 550009199 is a prime.

It is a super-2 number, since 2×550009231² = 605020308370422722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550009196 and 550009205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550009237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40156 + ... + 52081.

It is an arithmetic number, because the mean of its divisors is an integer number (70562070).

Almost surely, 2^550009231 is an apocalyptic number.

550009231 is a deficient number, since it is larger than the sum of its proper divisors (14487329).

550009231 is an equidigital number, since it uses as much as digits as its factorization.

550009231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92393.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 550009231 is about 23452.2756038726. The cubic root of 550009231 is about 819.3258543051.

Adding to 550009231 its reverse (132900055), we get a palindrome (682909286).

The spelling of 550009231 in words is "five hundred fifty million, nine thousand, two hundred thirty-one".