2582009 has 2 divisors, whose sum is σ = 2582010. Its totient is φ = 2582008.

The previous prime is 2581991. The next prime is 2582029. The reversal of 2582009 is 9002852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 1056784 = 1235^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2582009 - 2¹⁶ = 2516473 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2582029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291004 + 1291005.

It is an arithmetic number, because the mean of its divisors is an integer number (1291005).

2^2582009 is an apocalyptic number.

It is an amenable number.

2582009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2582009 is an equidigital number, since it uses as much as digits as its factorization.

2582009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2582009 is about 1606.8630931103. The cubic root of 2582009 is about 137.1889874061.

The spelling of 2582009 in words is "two million, five hundred eighty-two thousand, nine".