2555009 has 2 divisors, whose sum is σ = 2555010. Its totient is φ = 2555008.

The previous prime is 2554991. The next prime is 2555011. The reversal of 2555009 is 9005552.

2555009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1555009 + 1000000 = 1247^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555009 - 2⁸ = 2554753 is a prime.

It is a Sophie Germain prime.

Together with 2555011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p₁₈₆₈₀₃ and since 2555009 and 186803 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2555089) 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 as a sum of consecutive naturals, namely, 1277504 + 1277505.

It is an arithmetic number, because the mean of its divisors is an integer number (1277505).

2^2555009 is an apocalyptic number.

It is an amenable number.

2555009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555009 is an equidigital number, since it uses as much as digits as its factorization.

2555009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 2555009 is about 1598.4395515627. The cubic root of 2555009 is about 136.7091169605.

The spelling of 2555009 in words is "two million, five hundred fifty-five thousand, nine".