2582318921 has 16 divisors (see below), whose sum is σ = 3365195904. Its totient is φ = 1922966784.

The previous prime is 2582318881. The next prime is 2582318929. The reversal of 2582318921 is 1298132852.

It is a cyclic number.

It is not a de Polignac number, because 2582318921 - 2⁶ = 2582318857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2582318929) 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, 833075 + ... + 836168.

It is an arithmetic number, because the mean of its divisors is an integer number (210324744).

Almost surely, 2^2582318921 is an apocalyptic number.

It is an amenable number.

2582318921 is a deficient number, since it is larger than the sum of its proper divisors (782876983).

2582318921 is a wasteful number, since it uses less digits than its factorization.

2582318921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669280.

The product of its digits is 69120, while the sum is 41.

The square root of 2582318921 is about 50816.5221261747. The cubic root of 2582318921 is about 1371.9447616145.

It can be divided in two parts, 25823 and 18921, that added together give a palindrome (44744).

The spelling of 2582318921 in words is "two billion, five hundred eighty-two million, three hundred eighteen thousand, nine hundred twenty-one".