18055005 has 8 divisors (see below), whose sum is σ = 28888032. Its totient is φ = 9629328.

The previous prime is 18054991. The next prime is 18055013. The reversal of 18055005 is 50055081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18055005 - 2⁶ = 18054941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601819 + ... + 601848.

It is an arithmetic number, because the mean of its divisors is an integer number (3611004).

Almost surely, 2^18055005 is an apocalyptic number.

18055005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18055005 is a deficient number, since it is larger than the sum of its proper divisors (10833027).

18055005 is a wasteful number, since it uses less digits than its factorization.

18055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203675.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 18055005 is about 4249.1181438035. The cubic root of 18055005 is about 262.3408195920.

The spelling of 18055005 in words is "eighteen million, fifty-five thousand, five".