2165725750 has 64 divisors (see below), whose sum is σ = 4185043200. Its totient is φ = 838780800.

The previous prime is 2165725717. The next prime is 2165725753. The reversal of 2165725750 is 575275612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165725753) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1045716 + ... + 1047784.

It is an arithmetic number, because the mean of its divisors is an integer number (65391300).

Almost surely, 2^2165725750 is an apocalyptic number.

2165725750 is a deficient number, since it is larger than the sum of its proper divisors (2019317450).

2165725750 is a wasteful number, since it uses less digits than its factorization.

2165725750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 2165725750 is about 46537.3586487244. The cubic root of 2165725750 is about 1293.8020057354.

The spelling of 2165725750 in words is "two billion, one hundred sixty-five million, seven hundred twenty-five thousand, seven hundred fifty".