225271 has 4 divisors (see below), whose sum is σ = 230112. Its totient is φ = 220432.

The previous prime is 225263. The next prime is 225287. The reversal of 225271 is 172522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225271 - 2³ = 225263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (57528).

2²²⁵²⁷¹ is an apocalyptic number.

225271 is a deficient number, since it is larger than the sum of its proper divisors (4841).

225271 is an equidigital number, since it uses as much as digits as its factorization.

225271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840.

The product of its digits is 280, while the sum is 19.

The square root of 225271 is about 474.6272221439. The cubic root of 225271 is about 60.8464290732.

Adding to 225271 its reverse (172522), we get a palindrome (397793).

It can be divided in two parts, 225 and 271, that added together give a triangular number (496 = T₃₁).

The spelling of 225271 in words is "two hundred twenty-five thousand, two hundred seventy-one".