550008817 has 2 divisors, whose sum is σ = 550008818. Its totient is φ = 550008816.

The previous prime is 550008799. The next prime is 550008839. The reversal of 550008817 is 718800055.

550008817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443692096 + 106316721 = 21064^2 + 10311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550008817 is a prime.

It is not a weakly prime, because it can be changed into another prime (550008857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275004408 + 275004409.

It is an arithmetic number, because the mean of its divisors is an integer number (275004409).

Almost surely, 2^550008817 is an apocalyptic number.

It is an amenable number.

550008817 is a deficient number, since it is larger than the sum of its proper divisors (1).

550008817 is an equidigital number, since it uses as much as digits as its factorization.

550008817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 550008817 is about 23452.2667774354. The cubic root of 550008817 is about 819.3256487322.

The spelling of 550008817 in words is "five hundred fifty million, eight thousand, eight hundred seventeen".