225554101 has 2 divisors, whose sum is σ = 225554102. Its totient is φ = 225554100.

The previous prime is 225554071. The next prime is 225554117. The reversal of 225554101 is 101455522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150038001 + 75516100 = 12249^2 + 8690^2 .

It is a cyclic number.

It is not a de Polignac number, because 225554101 - 2⁹ = 225553589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225554191) 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 as a sum of consecutive naturals, namely, 112777050 + 112777051.

It is an arithmetic number, because the mean of its divisors is an integer number (112777051).

Almost surely, 2^225554101 is an apocalyptic number.

It is an amenable number.

225554101 is a deficient number, since it is larger than the sum of its proper divisors (1).

225554101 is an equidigital number, since it uses as much as digits as its factorization.

225554101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 225554101 is about 15018.4586759095. The cubic root of 225554101 is about 608.7190723662.

The spelling of 225554101 in words is "two hundred twenty-five million, five hundred fifty-four thousand, one hundred one".