225897 has 16 divisors (see below), whose sum is σ = 356352. Its totient is φ = 124560.

The previous prime is 225889. The next prime is 225919. The reversal of 225897 is 798522.

It is not a de Polignac number, because 225897 - 2³ = 225889 is a prime.

225897 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225897.

It is not an unprimeable number, because it can be changed into a prime (225697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (22272).

2²²⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

225897 is a deficient number, since it is larger than the sum of its proper divisors (130455).

225897 is a wasteful number, since it uses less digits than its factorization.

225897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its digits is 10080, while the sum is 33.

The square root of 225897 is about 475.2862295502. The cubic root of 225897 is about 60.9027384911.

The spelling of 225897 in words is "two hundred twenty-five thousand, eight hundred ninety-seven".