2256067609 has 4 divisors (see below), whose sum is σ = 2256220980. Its totient is φ = 2255914240.

The previous prime is 2256067559. The next prime is 2256067643. The reversal of 2256067609 is 9067606522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 597949209 + 1658118400 = 24453^2 + 40720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256067609 - 2⁷ = 2256067481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256067699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51964 + ... + 84925.

It is an arithmetic number, because the mean of its divisors is an integer number (564055245).

Almost surely, 2^2256067609 is an apocalyptic number.

It is an amenable number.

2256067609 is a deficient number, since it is larger than the sum of its proper divisors (153371).

2256067609 is a wasteful number, since it uses less digits than its factorization.

2256067609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153370.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 2256067609 is about 47498.0800559349. The cubic root of 2256067609 is about 1311.5475386887.

The spelling of 2256067609 in words is "two billion, two hundred fifty-six million, sixty-seven thousand, six hundred nine".