2541665 has 16 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1723200.

The previous prime is 2541613. The next prime is 2541677. The reversal of 2541665 is 5661452.

It is not a de Polignac number, because 2541665 - 2¹⁰ = 2540641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3176 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2^2541665 is an apocalyptic number.

It is an amenable number.

2541665 is a deficient number, since it is larger than the sum of its proper divisors (983455).

2541665 is a wasteful number, since it uses less digits than its factorization.

2541665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its digits is 7200, while the sum is 29.

The square root of 2541665 is about 1594.2600164340. The cubic root of 2541665 is about 136.4707053380.

The spelling of 2541665 in words is "two million, five hundred forty-one thousand, six hundred sixty-five".