25794496582 has 4 divisors (see below), whose sum is σ = 38691744876. Its totient is φ = 12897248290.

The previous prime is 25794496549. The next prime is 25794496591. The reversal of 25794496582 is 28569449752.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25794496582.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6448624144 + ... + 6448624147.

It is an arithmetic number, because the mean of its divisors is an integer number (9672936219).

Almost surely, 2^25794496582 is an apocalyptic number.

25794496582 is a deficient number, since it is larger than the sum of its proper divisors (12897248294).

25794496582 is a wasteful number, since it uses less digits than its factorization.

25794496582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12897248293.

The product of its digits is 43545600, while the sum is 61.

The spelling of 25794496582 in words is "twenty-five billion, seven hundred ninety-four million, four hundred ninety-six thousand, five hundred eighty-two".