2256722445 has 8 divisors (see below), whose sum is σ = 3610755936. Its totient is φ = 1203585296.

The previous prime is 2256722411. The next prime is 2256722497. The reversal of 2256722445 is 5442276522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2256722445 - 2⁸ = 2256722189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 75224067 + ... + 75224096.

It is an arithmetic number, because the mean of its divisors is an integer number (451344492).

Almost surely, 2^2256722445 is an apocalyptic number.

It is an amenable number.

2256722445 is a deficient number, since it is larger than the sum of its proper divisors (1354033491).

2256722445 is a wasteful number, since it uses less digits than its factorization.

2256722445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150448171.

The product of its digits is 268800, while the sum is 39.

The square root of 2256722445 is about 47504.9728449559. The cubic root of 2256722445 is about 1311.6744210361.

Adding to 2256722445 its reverse (5442276522), we get a palindrome (7698998967).

The spelling of 2256722445 in words is "two billion, two hundred fifty-six million, seven hundred twenty-two thousand, four hundred forty-five".