550043323 has 4 divisors (see below), whose sum is σ = 567786688. Its totient is φ = 532299960.

The previous prime is 550043317. The next prime is 550043339. The reversal of 550043323 is 323340055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323340055 = 5 ⋅64668011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550043323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550043353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8871636 + ... + 8871697.

It is an arithmetic number, because the mean of its divisors is an integer number (141946672).

Almost surely, 2^550043323 is an apocalyptic number.

550043323 is a deficient number, since it is larger than the sum of its proper divisors (17743365).

550043323 is a wasteful number, since it uses less digits than its factorization.

550043323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17743364.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 550043323 is about 23453.0024303926. The cubic root of 550043323 is about 819.3427824330.

Adding to 550043323 its reverse (323340055), we get a palindrome (873383378).

The spelling of 550043323 in words is "five hundred fifty million, forty-three thousand, three hundred twenty-three".