225911099 has 2 divisors, whose sum is σ = 225911100. Its totient is φ = 225911098.

The previous prime is 225911089. The next prime is 225911123. The reversal of 225911099 is 990119522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225911099 - 2¹⁶ = 225845563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225911039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112955549 + 112955550.

It is an arithmetic number, because the mean of its divisors is an integer number (112955550).

Almost surely, 2^225911099 is an apocalyptic number.

225911099 is a deficient number, since it is larger than the sum of its proper divisors (1).

225911099 is an equidigital number, since it uses as much as digits as its factorization.

225911099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 225911099 is about 15030.3392842610. The cubic root of 225911099 is about 609.0400551378.

The spelling of 225911099 in words is "two hundred twenty-five million, nine hundred eleven thousand, ninety-nine".