225471 has 8 divisors (see below), whose sum is σ = 318384. Its totient is φ = 141440.

The previous prime is 225461. The next prime is 225479. The reversal of 225471 is 174522.

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

It is not a de Polignac number, because 225471 - 2⁷ = 225343 is a prime.

It is a super-3 number, since 3×225471³ = 34386923916486333, which contains 333 as substring.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225479) 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, 2160 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (39798).

2²²⁵⁴⁷¹ is an apocalyptic number.

225471 is a deficient number, since it is larger than the sum of its proper divisors (92913).

225471 is a wasteful number, since it uses less digits than its factorization.

225471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

The product of its digits is 560, while the sum is 21.

The square root of 225471 is about 474.8378670662. The cubic root of 225471 is about 60.8644306302.

Adding to 225471 its reverse (174522), we get a palindrome (399993).

It can be divided in two parts, 225 and 471, that added together give a palindrome (696).

The spelling of 225471 in words is "two hundred twenty-five thousand, four hundred seventy-one".