4256081 has 8 divisors (see below), whose sum is σ = 4467264. Its totient is φ = 4047120.

The previous prime is 4256051. The next prime is 4256089. The reversal of 4256081 is 1806524.

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

It is a cyclic number.

It is not a de Polignac number, because 4256081 - 2¹⁰ = 4255057 is a prime.

It is a super-2 number, since 2×4256081² = 36228450957122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256081.

It is not an unprimeable number, because it can be changed into a prime (4256089) 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, 4415 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (558408).

Almost surely, 2^4256081 is an apocalyptic number.

It is an amenable number.

4256081 is a deficient number, since it is larger than the sum of its proper divisors (211183).

4256081 is a wasteful number, since it uses less digits than its factorization.

4256081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4256081 is about 2063.0271447560. The cubic root of 4256081 is about 162.0578084601.

The spelling of 4256081 in words is "four million, two hundred fifty-six thousand, eighty-one".