6663256 has 16 divisors (see below), whose sum is σ = 12831840. Its totient is φ = 3241440.

The previous prime is 6663229. The next prime is 6663257. The reversal of 6663256 is 6523666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10960 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (801990).

Almost surely, 2^6663256 is an apocalyptic number.

It is an amenable number.

6663256 is a deficient number, since it is larger than the sum of its proper divisors (6168584).

6663256 is a wasteful number, since it uses less digits than its factorization.

6663256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22554 (or 22550 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 6663256 is about 2581.3283402156. The cubic root of 6663256 is about 188.1751046991.

The spelling of 6663256 in words is "six million, six hundred sixty-three thousand, two hundred fifty-six".