203055 has 8 divisors (see below), whose sum is σ = 324912. Its totient is φ = 108288.

The previous prime is 203051. The next prime is 203057. The reversal of 203055 is 550302.

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

It is not a de Polignac number, because 203055 - 2² = 203051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 13537 = 203055 / (2 + 0 + 3 + 0 + 5 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203051) 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, 6754 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (40614).

2²⁰³⁰⁵⁵ is an apocalyptic number.

203055 is a deficient number, since it is larger than the sum of its proper divisors (121857).

203055 is a wasteful number, since it uses less digits than its factorization.

203055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13545.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 203055 is about 450.6162447138. The cubic root of 203055 is about 58.7766138663.

Adding to 203055 its reverse (550302), we get a palindrome (753357).

The spelling of 203055 in words is "two hundred three thousand, fifty-five".