18755 has 12 divisors (see below), whose sum is σ = 25536. Its totient is φ = 13200.

The previous prime is 18749. The next prime is 18757. The reversal of 18755 is 55781.

18755 = 18² + 19² + ... + 39².

It is not a de Polignac number, because 18755 - 2⁶ = 18691 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (18757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (2128).

2¹⁸⁷⁵⁵ is an apocalyptic number.

18755 is a deficient number, since it is larger than the sum of its proper divisors (6781).

18755 is a wasteful number, since it uses less digits than its factorization.

18755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 47 counting only the distinct ones).

The product of its digits is 1400, while the sum is 26.

The square root of 18755 is about 136.9488955779. The cubic root of 18755 is about 26.5688254832.

Adding to 18755 its sum of digits (26), we get a palindrome (18781).

It can be divided in two parts, 187 and 55, that added together give a palindrome (242).

The spelling of 18755 in words is "eighteen thousand, seven hundred fifty-five".