2208425909 has 2 divisors, whose sum is σ = 2208425910. Its totient is φ = 2208425908.

The previous prime is 2208425867. The next prime is 2208425941. The reversal of 2208425909 is 9095248022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2058436900 + 149989009 = 45370^2 + 12247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2208425909 - 2¹⁶ = 2208360373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2208425969) 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, 1104212954 + 1104212955.

It is an arithmetic number, because the mean of its divisors is an integer number (1104212955).

Almost surely, 2^2208425909 is an apocalyptic number.

It is an amenable number.

2208425909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2208425909 is an equidigital number, since it uses as much as digits as its factorization.

2208425909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 2208425909 is about 46993.8922520789. The cubic root of 2208425909 is about 1302.2497354057.

The spelling of 2208425909 in words is "two billion, two hundred eight million, four hundred twenty-five thousand, nine hundred nine".