2256617 has 8 divisors (see below), whose sum is σ = 2474112. Its totient is φ = 2041200.

The previous prime is 2256613. The next prime is 2256619. The reversal of 2256617 is 7166522.

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 2256617 - 2² = 2256613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2256617.

It is not an unprimeable number, because it can be changed into a prime (2256613) 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, 2603 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (309264).

2^2256617 is an apocalyptic number.

It is an amenable number.

2256617 is a deficient number, since it is larger than the sum of its proper divisors (217495).

2256617 is a wasteful number, since it uses less digits than its factorization.

2256617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 5040, while the sum is 29.

The square root of 2256617 is about 1502.2040473917. The cubic root of 2256617 is about 131.1653991458.

The spelling of 2256617 in words is "two million, two hundred fifty-six thousand, six hundred seventeen".