2256663 has 8 divisors (see below), whose sum is σ = 3033088. Its totient is φ = 1492344.

The previous prime is 2256637. The next prime is 2256673. The reversal of 2256663 is 3666522.

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

It is not a de Polignac number, because 2256663 - 2¹⁰ = 2255639 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 2256663.

It is a congruent number.

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, 2581 + ... + 3342.

It is an arithmetic number, because the mean of its divisors is an integer number (379136).

2^2256663 is an apocalyptic number.

2256663 is a deficient number, since it is larger than the sum of its proper divisors (776425).

2256663 is a wasteful number, since it uses less digits than its factorization.

2256663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053.

The product of its digits is 12960, while the sum is 30.

The square root of 2256663 is about 1502.2193581498. The cubic root of 2256663 is about 131.1662903866.

The spelling of 2256663 in words is "two million, two hundred fifty-six thousand, six hundred sixty-three".