225757565 has 16 divisors (see below), whose sum is σ = 297988416. Its totient is φ = 164182480.

The previous prime is 225757559. The next prime is 225757577. The reversal of 225757565 is 565757522.

It is not a de Polignac number, because 225757565 - 2⁴ = 225757549 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10307 + ... + 23616.

It is an arithmetic number, because the mean of its divisors is an integer number (18624276).

Almost surely, 2^225757565 is an apocalyptic number.

It is an amenable number.

225757565 is a deficient number, since it is larger than the sum of its proper divisors (72230851).

225757565 is an equidigital number, since it uses as much as digits as its factorization.

225757565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33961 (or 33939 counting only the distinct ones).

The product of its digits is 735000, while the sum is 44.

The square root of 225757565 is about 15025.2309466444. The cubic root of 225757565 is about 608.9020516670.

The spelling of 225757565 in words is "two hundred twenty-five million, seven hundred fifty-seven thousand, five hundred sixty-five".