2253665 has 8 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 1791472.

The previous prime is 2253659. The next prime is 2253683. The reversal of 2253665 is 5663522.

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 2253665 - 2⁴ = 2253649 is a prime.

It is a d-powerful number, because it can be written as 2³ + 2²¹ + 5⁷ + 3⁵ + 6 + 6 + 5⁷ .

It is a Curzon number.

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, 515 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

2^2253665 is an apocalyptic number.

It is an amenable number.

2253665 is a deficient number, since it is larger than the sum of its proper divisors (467935).

2253665 is a wasteful number, since it uses less digits than its factorization.

2253665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871.

The product of its digits is 10800, while the sum is 29.

The square root of 2253665 is about 1501.2211695816. The cubic root of 2253665 is about 131.1081793901.

The spelling of 2253665 in words is "two million, two hundred fifty-three thousand, six hundred sixty-five".