2117250565 has 8 divisors (see below), whose sum is σ = 2551894560. Its totient is φ = 1686337872.

The previous prime is 2117250539. The next prime is 2117250607. The reversal of 2117250565 is 5650527112.

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 2117250565 - 2¹⁵ = 2117217797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2117250565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931575 + ... + 933844.

It is an arithmetic number, because the mean of its divisors is an integer number (318986820).

Almost surely, 2^2117250565 is an apocalyptic number.

It is an amenable number.

2117250565 is a deficient number, since it is larger than the sum of its proper divisors (434643995).

2117250565 is a wasteful number, since it uses less digits than its factorization.

2117250565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865651.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 2117250565 is about 46013.5910900247. The cubic root of 2117250565 is about 1284.0760697824.

Adding to 2117250565 its reverse (5650527112), we get a palindrome (7767777677).

The spelling of 2117250565 in words is "two billion, one hundred seventeen million, two hundred fifty thousand, five hundred sixty-five".