2225897909 has 4 divisors (see below), whose sum is σ = 2226002304. Its totient is φ = 2225793516.

The previous prime is 2225897903. The next prime is 2225897923. The reversal of 2225897909 is 9097985222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2225897909 - 2¹⁶ = 2225832373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225897903) 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 in 3 ways as a sum of consecutive naturals, for example, 7397 + ... + 67130.

It is an arithmetic number, because the mean of its divisors is an integer number (556500576).

Almost surely, 2^2225897909 is an apocalyptic number.

It is an amenable number.

2225897909 is a deficient number, since it is larger than the sum of its proper divisors (104395).

2225897909 is an equidigital number, since it uses as much as digits as its factorization.

2225897909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104394.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 2225897909 is about 47179.4225166015. The cubic root of 2225897909 is about 1305.6749754213.

The spelling of 2225897909 in words is "two billion, two hundred twenty-five million, eight hundred ninety-seven thousand, nine hundred nine".