2265983999 has 4 divisors (see below), whose sum is σ = 2267324136. Its totient is φ = 2264643864.

The previous prime is 2265983969. The next prime is 2265984011. The reversal of 2265983999 is 9993895622.

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

It is a cyclic number.

It is not a de Polignac number, because 2265983999 - 2⁸ = 2265983743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265983969) 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 in 3 ways as a sum of consecutive naturals, for example, 667529 + ... + 670914.

It is an arithmetic number, because the mean of its divisors is an integer number (566831034).

Almost surely, 2^2265983999 is an apocalyptic number.

2265983999 is a deficient number, since it is larger than the sum of its proper divisors (1340137).

2265983999 is a wasteful number, since it uses less digits than its factorization.

2265983999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340136.

The product of its digits is 18895680, while the sum is 62.

The square root of 2265983999 is about 47602.3528725209. The cubic root of 2265983999 is about 1313.4663357806.

The spelling of 2265983999 in words is "two billion, two hundred sixty-five million, nine hundred eighty-three thousand, nine hundred ninety-nine".