2585009 has 8 divisors (see below), whose sum is σ = 3026688. Its totient is φ = 2161440.

The previous prime is 2584999. The next prime is 2585029. The reversal of 2585009 is 9005852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2585009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2585029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4217 + ... + 4790.

It is an arithmetic number, because the mean of its divisors is an integer number (378336).

2^2585009 is an apocalyptic number.

It is an amenable number.

2585009 is a deficient number, since it is larger than the sum of its proper divisors (441679).

2585009 is an equidigital number, since it uses as much as digits as its factorization.

2585009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2585009 is about 1607.7963179458. The cubic root of 2585009 is about 137.2420994940.

The spelling of 2585009 in words is "two million, five hundred eighty-five thousand, nine".