18473055 has 16 divisors (see below), whose sum is σ = 30511104. Its totient is φ = 9534240.

The previous prime is 18473053. The next prime is 18473069. The reversal of 18473055 is 55037481.

It is not a de Polignac number, because 18473055 - 2¹ = 18473053 is a prime.

It is a super-2 number, since 2×18473055² = 682507522066050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18473051) 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 15 ways as a sum of consecutive naturals, for example, 19399 + ... + 20328.

It is an arithmetic number, because the mean of its divisors is an integer number (1906944).

Almost surely, 2^18473055 is an apocalyptic number.

18473055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18473055 is a deficient number, since it is larger than the sum of its proper divisors (12038049).

18473055 is a wasteful number, since it uses less digits than its factorization.

18473055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39766.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 18473055 is about 4298.0291995285. The cubic root of 18473055 is about 264.3501580646.

The spelling of 18473055 in words is "eighteen million, four hundred seventy-three thousand, fifty-five".