550790217 has 6 divisors (see below), whose sum is σ = 795585882. Its totient is φ = 367193472.

The previous prime is 550790197. The next prime is 550790249. The reversal of 550790217 is 712097055.

550790217 is a `hidden beast` number, since 550 + 7 + 90 + 2 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 535274496 + 15515721 = 23136^2 + 3939^2 .

It is not a de Polignac number, because 550790217 - 2¹⁹ = 550265929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550790267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30599448 + ... + 30599465.

It is an arithmetic number, because the mean of its divisors is an integer number (132597647).

Almost surely, 2^550790217 is an apocalyptic number.

It is an amenable number.

550790217 is a deficient number, since it is larger than the sum of its proper divisors (244795665).

550790217 is a wasteful number, since it uses less digits than its factorization.

550790217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61198919 (or 61198916 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 550790217 is about 23468.9202350683. The cubic root of 550790217 is about 819.7134716742.

The spelling of 550790217 in words is "five hundred fifty million, seven hundred ninety thousand, two hundred seventeen".