25532822194 has 32 divisors (see below), whose sum is σ = 42422123520. Its totient is φ = 11428141200.

The previous prime is 25532822171. The next prime is 25532822207. The reversal of 25532822194 is 49122823552.

It is a self number, because there is not a number n which added to its sum of digits gives 25532822194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300777 + ... + 1320259.

It is an arithmetic number, because the mean of its divisors is an integer number (1325691360).

Almost surely, 2^25532822194 is an apocalyptic number.

25532822194 is a deficient number, since it is larger than the sum of its proper divisors (16889301326).

25532822194 is a wasteful number, since it uses less digits than its factorization.

25532822194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20406.

The product of its digits is 345600, while the sum is 43.

The spelling of 25532822194 in words is "twenty-five billion, five hundred thirty-two million, eight hundred twenty-two thousand, one hundred ninety-four".