11055589 has 4 divisors (see below), whose sum is σ = 11062240. Its totient is φ = 11048940.

The previous prime is 11055557. The next prime is 11055599. The reversal of 11055589 is 98555011.

11055589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11055589 - 2⁵ = 11055557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055509) 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, 1654 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (2765560).

Almost surely, 2^11055589 is an apocalyptic number.

It is an amenable number.

11055589 is a deficient number, since it is larger than the sum of its proper divisors (6651).

11055589 is an equidigital number, since it uses as much as digits as its factorization.

11055589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 11055589 is about 3324.9945864618. The cubic root of 11055589 is about 222.7720125640.

The spelling of 11055589 in words is "eleven million, fifty-five thousand, five hundred eighty-nine".