225485569 has 8 divisors (see below), whose sum is σ = 238886280. Its totient is φ = 212100096.

The previous prime is 225485549. The next prime is 225485573. The reversal of 225485569 is 965584522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 155127025 + 70358544 = 12455^2 + 8388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225485569 - 2¹¹ = 225483521 is a prime.

It is a super-2 number, since 2×225485569² = 101687483654507522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225485509) 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 7 ways as a sum of consecutive naturals, for example, 43677 + ... + 48565.

It is an arithmetic number, because the mean of its divisors is an integer number (29860785).

Almost surely, 2^225485569 is an apocalyptic number.

It is an amenable number.

225485569 is a deficient number, since it is larger than the sum of its proper divisors (13400711).

225485569 is a wasteful number, since it uses less digits than its factorization.

225485569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7619.

The product of its digits is 864000, while the sum is 46.

The square root of 225485569 is about 15016.1769102525. The cubic root of 225485569 is about 608.6574153756.

The spelling of 225485569 in words is "two hundred twenty-five million, four hundred eighty-five thousand, five hundred sixty-nine".