225835569 has 6 divisors (see below), whose sum is σ = 326206946. Its totient is φ = 150557040.

The previous prime is 225835559. The next prime is 225835573. The reversal of 225835569 is 965538522.

225835569 is a `hidden beast` number, since 2 + 2 + 5 + 83 + 5 + 569 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121550625 + 104284944 = 11025^2 + 10212^2 .

It is not a de Polignac number, because 225835569 - 2¹³ = 225827377 is a prime.

It is a super-2 number, since 2×225835569² = 102003408451107522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225835549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12546412 + ... + 12546429.

Almost surely, 2^225835569 is an apocalyptic number.

It is an amenable number.

225835569 is a deficient number, since it is larger than the sum of its proper divisors (100371377).

225835569 is a wasteful number, since it uses less digits than its factorization.

225835569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25092847 (or 25092844 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 225835569 is about 15027.8264895493. The cubic root of 225835569 is about 608.9721730917.

The spelling of 225835569 in words is "two hundred twenty-five million, eight hundred thirty-five thousand, five hundred sixty-nine".