550229217 has 4 divisors (see below), whose sum is σ = 733638960. Its totient is φ = 366819476.

The previous prime is 550229201. The next prime is 550229231. The reversal of 550229217 is 712922055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550229217 - 2⁴ = 550229201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550229287) 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, 91704867 + ... + 91704872.

It is an arithmetic number, because the mean of its divisors is an integer number (183409740).

Almost surely, 2^550229217 is an apocalyptic number.

It is an amenable number.

550229217 is a deficient number, since it is larger than the sum of its proper divisors (183409743).

550229217 is a wasteful number, since it uses less digits than its factorization.

550229217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183409742.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 550229217 is about 23456.9652129170. The cubic root of 550229217 is about 819.4350744069.

The spelling of 550229217 in words is "five hundred fifty million, two hundred twenty-nine thousand, two hundred seventeen".