225064915 has 4 divisors (see below), whose sum is σ = 270077904. Its totient is φ = 180051928.

The previous prime is 225064909. The next prime is 225064951. The reversal of 225064915 is 519460522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225064915 - 2⁵ = 225064883 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 22506487 + ... + 22506496.

It is an arithmetic number, because the mean of its divisors is an integer number (67519476).

Almost surely, 2^225064915 is an apocalyptic number.

225064915 is a deficient number, since it is larger than the sum of its proper divisors (45012989).

225064915 is an equidigital number, since it uses as much as digits as its factorization.

225064915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45012988.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 225064915 is about 15002.1636772834. The cubic root of 225064915 is about 608.2786866948.

The spelling of 225064915 in words is "two hundred twenty-five million, sixty-four thousand, nine hundred fifteen".