225397 has 4 divisors (see below), whose sum is σ = 237280. Its totient is φ = 213516.

The previous prime is 225383. The next prime is 225427. The reversal of 225397 is 793522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225397 - 2¹⁵ = 192629 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225307) 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, 5913 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (59320).

2²²⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

225397 is a deficient number, since it is larger than the sum of its proper divisors (11883).

225397 is a wasteful number, since it uses less digits than its factorization.

225397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11882.

The product of its digits is 3780, while the sum is 28.

The square root of 225397 is about 474.7599393378. The cubic root of 225397 is about 60.8577712953.

The spelling of 225397 in words is "two hundred twenty-five thousand, three hundred ninety-seven".