18055089 has 16 divisors (see below), whose sum is σ = 28806400. Its totient is φ = 11110608.

The previous prime is 18055061. The next prime is 18055091. The reversal of 18055089 is 98055081.

It is not a de Polignac number, because 18055089 - 2⁹ = 18054577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18055019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25369 + ... + 26070.

It is an arithmetic number, because the mean of its divisors is an integer number (1800400).

Almost surely, 2^18055089 is an apocalyptic number.

It is an amenable number.

18055089 is a deficient number, since it is larger than the sum of its proper divisors (10751311).

18055089 is a wasteful number, since it uses less digits than its factorization.

18055089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51461 (or 51455 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 18055089 is about 4249.1280281959. The cubic root of 18055089 is about 262.3412264339.

The spelling of 18055089 in words is "eighteen million, fifty-five thousand, eighty-nine".