225434565 has 24 divisors (see below), whose sum is σ = 396590688. Its totient is φ = 118435680.

The previous prime is 225434549. The next prime is 225434567. The reversal of 225434565 is 565434522.

225434565 is a `hidden beast` number, since 2 + 254 + 345 + 65 = 666.

It is not a de Polignac number, because 225434565 - 2⁴ = 225434549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225434567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34371 + ... + 40400.

It is an arithmetic number, because the mean of its divisors is an integer number (16524612).

Almost surely, 2^225434565 is an apocalyptic number.

It is an amenable number.

225434565 is a deficient number, since it is larger than the sum of its proper divisors (171156123).

225434565 is a wasteful number, since it uses less digits than its factorization.

225434565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74849 (or 74846 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 225434565 is about 15014.4785124226. The cubic root of 225434565 is about 608.6115198978.

The spelling of 225434565 in words is "two hundred twenty-five million, four hundred thirty-four thousand, five hundred sixty-five".