225005217 has 8 divisors (see below), whose sum is σ = 317654496. Its totient is φ = 141179712.

The previous prime is 225005213. The next prime is 225005227. The reversal of 225005217 is 712500522.

225005217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225005217 - 2² = 225005213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225005213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205883 + ... + 2205984.

It is an arithmetic number, because the mean of its divisors is an integer number (39706812).

Almost surely, 2^225005217 is an apocalyptic number.

It is an amenable number.

225005217 is a deficient number, since it is larger than the sum of its proper divisors (92649279).

225005217 is a wasteful number, since it uses less digits than its factorization.

225005217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411887.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 225005217 is about 15000.1738989920. The cubic root of 225005217 is about 608.2249003874.

Adding to 225005217 its reverse (712500522), we get a palindrome (937505739).

The spelling of 225005217 in words is "two hundred twenty-five million, five thousand, two hundred seventeen".