2256081 has 8 divisors (see below), whose sum is σ = 3078240. Its totient is φ = 1468992.

The previous prime is 2256073. The next prime is 2256097. The reversal of 2256081 is 1806522.

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

It is not a de Polignac number, because 2256081 - 2³ = 2256073 is a prime.

It is a super-2 number, since 2×2256081² = 10179802957122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2256031) 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, 8616 + ... + 8873.

It is an arithmetic number, because the mean of its divisors is an integer number (384780).

2^2256081 is an apocalyptic number.

It is an amenable number.

2256081 is a deficient number, since it is larger than the sum of its proper divisors (822159).

2256081 is a wasteful number, since it uses less digits than its factorization.

2256081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17535.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2256081 is about 1502.0256322713. The cubic root of 2256081 is about 131.1550133602.

The spelling of 2256081 in words is "two million, two hundred fifty-six thousand, eighty-one".