18289055 has 16 divisors (see below), whose sum is σ = 22537440. Its totient is φ = 14243328.

The previous prime is 18289027. The next prime is 18289069. The reversal of 18289055 is 55098281.

It is a cyclic number.

It is not a de Polignac number, because 18289055 - 2¹⁰ = 18288031 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32204 + ... + 32766.

It is an arithmetic number, because the mean of its divisors is an integer number (1408590).

Almost surely, 2^18289055 is an apocalyptic number.

18289055 is a deficient number, since it is larger than the sum of its proper divisors (4248385).

18289055 is an equidigital number, since it uses as much as digits as its factorization.

18289055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 18289055 is about 4276.5704717682. The cubic root of 18289055 is about 263.4695453330.

The spelling of 18289055 in words is "eighteen million, two hundred eighty-nine thousand, fifty-five".