2255009 has 2 divisors, whose sum is σ = 2255010. Its totient is φ = 2255008.

The previous prime is 2255003. The next prime is 2255021. The reversal of 2255009 is 9005522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 717409 = 1240^2 + 847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255009 - 2²⁰ = 1206433 is a prime.

It is equal to p₁₆₆₄₁₅ and since 2255009 and 166415 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 (2255003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127504 + 1127505.

It is an arithmetic number, because the mean of its divisors is an integer number (1127505).

2^2255009 is an apocalyptic number.

It is an amenable number.

2255009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255009 is an equidigital number, since it uses as much as digits as its factorization.

2255009 is an evil number, because the sum of its binary digits is even.

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

The square root of 2255009 is about 1501.6687384373. The cubic root of 2255009 is about 131.1342368530.

The spelling of 2255009 in words is "two million, two hundred fifty-five thousand, nine".