225270 has 24 divisors (see below), whose sum is σ = 585936. Its totient is φ = 60048.

The previous prime is 225263. The next prime is 225287. The reversal of 225270 is 72522.

It is a happy number.

225270 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1162 + ... + 1341.

It is an arithmetic number, because the mean of its divisors is an integer number (24414).

2²²⁵²⁷⁰ is an apocalyptic number.

225270 is an abundant number, since it is smaller than the sum of its proper divisors (360666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225270 is a wasteful number, since it uses less digits than its factorization.

225270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 225270 is about 474.6261686844. The cubic root of 225270 is about 60.8463390387.

Adding to 225270 its reverse (72522), we get a palindrome (297792).

The spelling of 225270 in words is "two hundred twenty-five thousand, two hundred seventy".