225469 has 4 divisors (see below), whose sum is σ = 235296. Its totient is φ = 215644.

The previous prime is 225461. The next prime is 225479. The reversal of 225469 is 964522.

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 225469 - 2³ = 225461 is a prime.

It is a super-2 number, since 2×225469² = 101672539922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4879 + ... + 4924.

It is an arithmetic number, because the mean of its divisors is an integer number (58824).

2²²⁵⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

225469 is a deficient number, since it is larger than the sum of its proper divisors (9827).

225469 is an equidigital number, since it uses as much as digits as its factorization.

225469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826.

The product of its digits is 4320, while the sum is 28.

The square root of 225469 is about 474.8357610796. The cubic root of 225469 is about 60.8642506673.

The spelling of 225469 in words is "two hundred twenty-five thousand, four hundred sixty-nine".