25564492322 has 32 divisors (see below), whose sum is σ = 42154596720. Its totient is φ = 11573452800.

The previous prime is 25564492319. The next prime is 25564492363. The reversal of 25564492322 is 22329446552.

It is a Cunningham number, because it is equal to 159889²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 19903284241 + 5661208081 = 141079^2 + 75241^2 .

It is an unprimeable number.

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, 226322 + ... + 319922.

Almost surely, 2^25564492322 is an apocalyptic number.

25564492322 is a deficient number, since it is larger than the sum of its proper divisors (16590104398).

25564492322 is a wasteful number, since it uses less digits than its factorization.

25564492322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93926.

The product of its digits is 1036800, while the sum is 44.

The spelling of 25564492322 in words is "twenty-five billion, five hundred sixty-four million, four hundred ninety-two thousand, three hundred twenty-two".