225522113 has 2 divisors, whose sum is σ = 225522114. Its totient is φ = 225522112.

The previous prime is 225522109. The next prime is 225522137. The reversal of 225522113 is 311225522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224041024 + 1481089 = 14968^2 + 1217^2 .

It is a cyclic number.

It is not a de Polignac number, because 225522113 - 2² = 225522109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (225522103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112761056 + 112761057.

It is an arithmetic number, because the mean of its divisors is an integer number (112761057).

Almost surely, 2^225522113 is an apocalyptic number.

It is an amenable number.

225522113 is a deficient number, since it is larger than the sum of its proper divisors (1).

225522113 is an equidigital number, since it uses as much as digits as its factorization.

225522113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 225522113 is about 15017.3936819942. The cubic root of 225522113 is about 608.6902949004.

Adding to 225522113 its reverse (311225522), we get a palindrome (536747635).

The spelling of 225522113 in words is "two hundred twenty-five million, five hundred twenty-two thousand, one hundred thirteen".