18297055 has 32 divisors (see below), whose sum is σ = 26265600. Its totient is φ = 11975040.

The previous prime is 18297043. The next prime is 18297061. The reversal of 18297055 is 55079281.

It is not a de Polignac number, because 18297055 - 2¹¹ = 18295007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91846 + ... + 92044.

It is an arithmetic number, because the mean of its divisors is an integer number (820800).

Almost surely, 2^18297055 is an apocalyptic number.

18297055 is a deficient number, since it is larger than the sum of its proper divisors (7968545).

18297055 is a wasteful number, since it uses less digits than its factorization.

18297055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 18297055 is about 4277.5056984182. The cubic root of 18297055 is about 263.5079553568.

18297055 divided by its sum of digits (37) gives a triangular number (494515 = T₉₉₄).

The spelling of 18297055 in words is "eighteen million, two hundred ninety-seven thousand, fifty-five".