225225011 has 4 divisors (see below), whose sum is σ = 245700024. Its totient is φ = 204750000.

The previous prime is 225224983. The next prime is 225225029. The reversal of 225225011 is 110522522.

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 225225011 - 2¹⁸ = 224962867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225225041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10237490 + ... + 10237511.

It is an arithmetic number, because the mean of its divisors is an integer number (61425006).

Almost surely, 2^225225011 is an apocalyptic number.

225225011 is a deficient number, since it is larger than the sum of its proper divisors (20475013).

225225011 is a wasteful number, since it uses less digits than its factorization.

225225011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20475012.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 225225011 is about 15007.4984924204. The cubic root of 225225011 is about 608.4228819865.

Adding to 225225011 its reverse (110522522), we get a palindrome (335747533).

The spelling of 225225011 in words is "two hundred twenty-five million, two hundred twenty-five thousand, eleven".