204755 has 8 divisors (see below), whose sum is σ = 253824. Its totient is φ = 158400.

The previous prime is 204751. The next prime is 204781. The reversal of 204755 is 557402.

204755 is nontrivially palindromic in base 4.

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

It is not a de Polignac number, because 204755 - 2² = 204751 is a prime.

It is a super-2 number, since 2×204755² = 83849220050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204755.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 204755.

It is not an unprimeable number, because it can be changed into a prime (204751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (31728).

2²⁰⁴⁷⁵⁵ is an apocalyptic number.

204755 is a deficient number, since it is larger than the sum of its proper divisors (49069).

204755 is a wasteful number, since it uses less digits than its factorization.

204755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 204755 is about 452.4986187824. The cubic root of 204755 is about 58.9401864376.

It can be divided in two parts, 204 and 755, that added together give a palindrome (959).

The spelling of 204755 in words is "two hundred four thousand, seven hundred fifty-five".