2509385 has 8 divisors (see below), whose sum is σ = 3030720. Its totient is φ = 1994544.

The previous prime is 2509379. The next prime is 2509411. The reversal of 2509385 is 5839052.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2509385 - 2¹⁶ = 2443849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (378840).

2^2509385 is an apocalyptic number.

It is an amenable number.

2509385 is a deficient number, since it is larger than the sum of its proper divisors (521335).

2509385 is a wasteful number, since it uses less digits than its factorization.

2509385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2509385 is about 1584.1038476060. The cubic root of 2509385 is about 135.8905008175.

The spelling of 2509385 in words is "two million, five hundred nine thousand, three hundred eighty-five".