2193255823 has 16 divisors (see below), whose sum is σ = 2535287040. Its totient is φ = 1876392000.

The previous prime is 2193255811. The next prime is 2193255829. The reversal of 2193255823 is 3285523912.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2193255823 is a prime.

It is a super-2 number, since 2×2193255823² = 9620742210246814658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193255829) 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 15 ways as a sum of consecutive naturals, for example, 3190 + ... + 66307.

It is an arithmetic number, because the mean of its divisors is an integer number (158455440).

Almost surely, 2^2193255823 is an apocalyptic number.

2193255823 is a deficient number, since it is larger than the sum of its proper divisors (342031217).

2193255823 is a wasteful number, since it uses less digits than its factorization.

2193255823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69678.

The product of its digits is 129600, while the sum is 40.

The square root of 2193255823 is about 46832.2092474827. The cubic root of 2193255823 is about 1299.2610836319.

The spelling of 2193255823 in words is "two billion, one hundred ninety-three million, two hundred fifty-five thousand, eight hundred twenty-three".