2255665 has 8 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 1794672.

The previous prime is 2255663. The next prime is 2255677. The reversal of 2255665 is 5665522.

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 2255665 - 2¹ = 2255663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2255663) 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, 139 + ... + 2128.

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

2^2255665 is an apocalyptic number.

It is an amenable number.

2255665 is a deficient number, since it is larger than the sum of its proper divisors (465935).

2255665 is a wasteful number, since it uses less digits than its factorization.

2255665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471.

The product of its digits is 18000, while the sum is 31.

The square root of 2255665 is about 1501.8871462264. The cubic root of 2255665 is about 131.1469516166.

The spelling of 2255665 in words is "two million, two hundred fifty-five thousand, six hundred sixty-five".