225936615 has 32 divisors (see below), whose sum is σ = 378323136. Its totient is φ = 115015680.

The previous prime is 225936611. The next prime is 225936631. The reversal of 225936615 is 516639522.

It is not a de Polignac number, because 225936615 - 2² = 225936611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225936611) 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 31 ways as a sum of consecutive naturals, for example, 25575 + ... + 33255.

It is an arithmetic number, because the mean of its divisors is an integer number (11822598).

Almost surely, 2^225936615 is an apocalyptic number.

225936615 is a deficient number, since it is larger than the sum of its proper divisors (152386521).

225936615 is a wasteful number, since it uses less digits than its factorization.

225936615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779.

The product of its digits is 97200, while the sum is 39.

The square root of 225936615 is about 15031.1880767955. The cubic root of 225936615 is about 609.0629840408.

The spelling of 225936615 in words is "two hundred twenty-five million, nine hundred thirty-six thousand, six hundred fifteen".