225811469 has 16 divisors (see below), whose sum is σ = 246220800. Its totient is φ = 205856640.

The previous prime is 225811451. The next prime is 225811489. The reversal of 225811469 is 964118522.

It is a cyclic number.

It is not a de Polignac number, because 225811469 - 2⁸ = 225811213 is a prime.

It is a super-2 number, since 2×225811469² = 101981639063875922, 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 (225811489) 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, 493889 + ... + 494345.

It is an arithmetic number, because the mean of its divisors is an integer number (15388800).

Almost surely, 2^225811469 is an apocalyptic number.

It is an amenable number.

225811469 is a deficient number, since it is larger than the sum of its proper divisors (20409331).

225811469 is a wasteful number, since it uses less digits than its factorization.

225811469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its digits is 34560, while the sum is 38.

The square root of 225811469 is about 15027.0246223263. The cubic root of 225811469 is about 608.9505102044.

The spelling of 225811469 in words is "two hundred twenty-five million, eight hundred eleven thousand, four hundred sixty-nine".