25920774112256 has 66 divisors (see below), whose sum is σ = 55043544349338. Its totient is φ = 12198011207680.

The previous prime is 25920774112201. The next prime is 25920774112297. The reversal of 25920774112256 is 65221147702952.

It can be written as a sum of positive squares in 3 ways, for example, as 7734984441856 + 18185789670400 = 2781184^2 + 4264480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25920774112198 and 25920774112207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43498625 + ... + 44090496.

Almost surely, 2^{25920774112256} is an apocalyptic number.

It is an amenable number.

25920774112256 is an abundant number, since it is smaller than the sum of its proper divisors (29122770237082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25920774112256 is an equidigital number, since it uses as much as digits as its factorization.

25920774112256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87589175 (or 87589140 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 25920774112256 in words is "twenty-five trillion, nine hundred twenty billion, seven hundred seventy-four million, one hundred twelve thousand, two hundred fifty-six".