18050 has 18 divisors (see below), whose sum is σ = 35433. Its totient is φ = 6840.

The previous prime is 18049. The next prime is 18059. The reversal of 18050 is 5081.

It can be written as a sum of positive squares in 2 ways, for example, as 17689 + 361 = 133^2 + 19^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=95.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (18059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 941 + ... + 959.

2¹⁸⁰⁵⁰ is an apocalyptic number.

18050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18050 is a deficient number, since it is larger than the sum of its proper divisors (17383).

18050 is a wasteful number, since it uses less digits than its factorization.

18050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 18050 is about 134.3502884254. The cubic root of 18050 is about 26.2316576321.

The spelling of 18050 in words is "eighteen thousand, fifty".