4550009 has 2 divisors, whose sum is σ = 4550010. Its totient is φ = 4550008.

The previous prime is 4550003. The next prime is 4550011. The reversal of 4550009 is 9000554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4020025 + 529984 = 2005^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550009 - 2¹² = 4545913 is a prime.

Together with 4550011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4550003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275004 + 2275005.

It is an arithmetic number, because the mean of its divisors is an integer number (2275005).

Almost surely, 2^4550009 is an apocalyptic number.

It is an amenable number.

4550009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4550009 is an equidigital number, since it uses as much as digits as its factorization.

4550009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 4550009 is about 2133.0750104017. The cubic root of 4550009 is about 165.7056888907.

The spelling of 4550009 in words is "four million, five hundred fifty thousand, nine".