225909867 has 16 divisors (see below), whose sum is σ = 317557760. Its totient is φ = 142458912.

The previous prime is 225909851. The next prime is 225909881. The reversal of 225909867 is 768909522.

It is not a de Polignac number, because 225909867 - 2⁴ = 225909851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225909067) 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, 39078 + ... + 44484.

It is an arithmetic number, because the mean of its divisors is an integer number (19847360).

Almost surely, 2^225909867 is an apocalyptic number.

225909867 is a deficient number, since it is larger than the sum of its proper divisors (91647893).

225909867 is a wasteful number, since it uses less digits than its factorization.

225909867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6162.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 225909867 is about 15030.2983004330. The cubic root of 225909867 is about 609.0389480080.

The spelling of 225909867 in words is "two hundred twenty-five million, nine hundred nine thousand, eight hundred sixty-seven".