8001256 has 16 divisors (see below), whose sum is σ = 15035940. Its totient is φ = 3991680.

The previous prime is 8001247. The next prime is 8001269. The reversal of 8001256 is 6521008.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7784100 + 217156 = 2790^2 + 466^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126 + ... + 5746.

Almost surely, 2^8001256 is an apocalyptic number.

It is an amenable number.

8001256 is a deficient number, since it is larger than the sum of its proper divisors (7034684).

8001256 is a wasteful number, since it uses less digits than its factorization.

8001256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8001256 is about 2828.6491475614. The cubic root of 8001256 is about 200.0104661190.

The spelling of 8001256 in words is "eight million, one thousand, two hundred fifty-six".