25856952912 has 180 divisors, whose sum is σ = 86455029024. Its totient is φ = 7066350720.

The previous prime is 25856952911. The next prime is 25856952917. The reversal of 25856952912 is 21925965852.

25856952912 is a `hidden beast` number, since 2 + 58 + 5 + 69 + 529 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25856952911) by changing a digit.

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 in 35 ways as a sum of consecutive naturals, for example, 508987 + ... + 557477.

Almost surely, 2^25856952912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25856952912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43227514512).

25856952912 is an abundant number, since it is smaller than the sum of its proper divisors (60598076112).

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

25856952912 is a wasteful number, since it uses less digits than its factorization.

25856952912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48558 (or 48526 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The spelling of 25856952912 in words is "twenty-five billion, eight hundred fifty-six million, nine hundred fifty-two thousand, nine hundred twelve".