6661256 has 24 divisors (see below), whose sum is σ = 14529870. Its totient is φ = 2854656.

The previous prime is 6661243. The next prime is 6661273. The reversal of 6661256 is 6521666.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 240100 = 2534^2 + 490^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8105 + ... + 8888.

Almost surely, 2^6661256 is an apocalyptic number.

It is an amenable number.

6661256 is an abundant number, since it is smaller than the sum of its proper divisors (7868614).

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

6661256 is a wasteful number, since it uses less digits than its factorization.

6661256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17013 (or 17002 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 6661256 is about 2580.9409136979. The cubic root of 6661256 is about 188.1562756727.

The spelling of 6661256 in words is "six million, six hundred sixty-one thousand, two hundred fifty-six".