550243033 has 4 divisors (see below), whose sum is σ = 551231460. Its totient is φ = 549254608.

The previous prime is 550243019. The next prime is 550243069. The reversal of 550243033 is 330342055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225090009 + 325153024 = 15003^2 + 18032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550243033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550242989 and 550243007.

It is not an unprimeable number, because it can be changed into a prime (550243003) 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, 493378 + ... + 494491.

It is an arithmetic number, because the mean of its divisors is an integer number (137807865).

Almost surely, 2^550243033 is an apocalyptic number.

It is an amenable number.

550243033 is a deficient number, since it is larger than the sum of its proper divisors (988427).

550243033 is an equidigital number, since it uses as much as digits as its factorization.

550243033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988426.

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

The square root of 550243033 is about 23457.2597078175. The cubic root of 550243033 is about 819.4419328942.

Adding to 550243033 its reverse (330342055), we get a palindrome (880585088).

The spelling of 550243033 in words is "five hundred fifty million, two hundred forty-three thousand, thirty-three".