8556081 has 4 divisors (see below), whose sum is σ = 11408112. Its totient is φ = 5704052.

The previous prime is 8556071. The next prime is 8556089. The reversal of 8556081 is 1806558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8556081 - 2⁶ = 8556017 is a prime.

It is a super-2 number, since 2×8556081² = 146413044157122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8556089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426011 + ... + 1426016.

It is an arithmetic number, because the mean of its divisors is an integer number (2852028).

Almost surely, 2^8556081 is an apocalyptic number.

It is an amenable number.

8556081 is a deficient number, since it is larger than the sum of its proper divisors (2852031).

8556081 is a wasteful number, since it uses less digits than its factorization.

8556081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852030.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 8556081 is about 2925.0779476793. The cubic root of 8556081 is about 204.5306016061.

The spelling of 8556081 in words is "eight million, five hundred fifty-six thousand, eighty-one".