225566065 has 16 divisors (see below), whose sum is σ = 274256640. Its totient is φ = 178084800.

The previous prime is 225566063. The next prime is 225566069. The reversal of 225566065 is 560665522.

It is not a de Polignac number, because 225566065 - 2¹ = 225566063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225566063) 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 15 ways as a sum of consecutive naturals, for example, 125191 + ... + 126979.

It is an arithmetic number, because the mean of its divisors is an integer number (17141040).

Almost surely, 2^225566065 is an apocalyptic number.

It is an amenable number.

225566065 is a deficient number, since it is larger than the sum of its proper divisors (48690575).

225566065 is a wasteful number, since it uses less digits than its factorization.

225566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 225566065 is about 15018.8569804762. The cubic root of 225566065 is about 608.7298348783.

The spelling of 225566065 in words is "two hundred twenty-five million, five hundred sixty-six thousand, sixty-five".