2265061609 has 4 divisors (see below), whose sum is σ = 2285106516. Its totient is φ = 2245016704.

The previous prime is 2265061607. The next prime is 2265061627. The reversal of 2265061609 is 9061605622.

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 314956009 + 1950105600 = 17747^2 + 44160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265061609 - 2¹ = 2265061607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2265061607) 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, 10022284 + ... + 10022509.

It is an arithmetic number, because the mean of its divisors is an integer number (571276629).

Almost surely, 2^2265061609 is an apocalyptic number.

It is an amenable number.

2265061609 is a deficient number, since it is larger than the sum of its proper divisors (20044907).

2265061609 is a wasteful number, since it uses less digits than its factorization.

2265061609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044906.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2265061609 is about 47592.6633946872. The cubic root of 2265061609 is about 1313.2880920038.

The spelling of 2265061609 in words is "two billion, two hundred sixty-five million, sixty-one thousand, six hundred nine".