6665256 has 48 divisors (see below), whose sum is σ = 19443060. Its totient is φ = 2050560.

The previous prime is 6665249. The next prime is 6665261. The reversal of 6665256 is 6525666.

It can be written as a sum of positive squares in 2 ways, for example, as 5062500 + 1602756 = 2250^2 + 1266^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6665256.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2625 + ... + 4496.

Almost surely, 2^6665256 is an apocalyptic number.

It is an amenable number.

6665256 is an abundant number, since it is smaller than the sum of its proper divisors (12777804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6665256 is a wasteful number, since it uses less digits than its factorization.

6665256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146 (or 7139 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 6665256 is about 2581.7157085938. The cubic root of 6665256 is about 188.1939299582.

The spelling of 6665256 in words is "six million, six hundred sixty-five thousand, two hundred fifty-six".