550032209 has 2 divisors, whose sum is σ = 550032210. Its totient is φ = 550032208.

The previous prime is 550032173. The next prime is 550032247. The reversal of 550032209 is 902230055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549761809 + 270400 = 23447^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 550032209 - 2¹² = 550028113 is a prime.

It is not a weakly prime, because it can be changed into another prime (550032409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275016104 + 275016105.

It is an arithmetic number, because the mean of its divisors is an integer number (275016105).

Almost surely, 2^550032209 is an apocalyptic number.

It is an amenable number.

550032209 is a deficient number, since it is larger than the sum of its proper divisors (1).

550032209 is an equidigital number, since it uses as much as digits as its factorization.

550032209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 550032209 is about 23452.7654872512. The cubic root of 550032209 is about 819.3372639362.

The spelling of 550032209 in words is "five hundred fifty million, thirty-two thousand, two hundred nine".