8055561 has 4 divisors (see below), whose sum is σ = 10740752. Its totient is φ = 5370372.

The previous prime is 8055521. The next prime is 8055571. The reversal of 8055561 is 1655508.

It is a happy number.

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 not a de Polignac number, because 8055561 - 2⁹ = 8055049 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8055511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342591 + ... + 1342596.

It is an arithmetic number, because the mean of its divisors is an integer number (2685188).

Almost surely, 2^8055561 is an apocalyptic number.

It is an amenable number.

8055561 is a deficient number, since it is larger than the sum of its proper divisors (2685191).

8055561 is a wasteful number, since it uses less digits than its factorization.

8055561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685190.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 8055561 is about 2838.2320201139. The cubic root of 8055561 is about 200.4619405665.

The spelling of 8055561 in words is "eight million, fifty-five thousand, five hundred sixty-one".