25956552312 has 96 divisors (see below), whose sum is σ = 72778305600. Its totient is φ = 8347492608.

The previous prime is 25956552299. The next prime is 25956552329. The reversal of 25956552312 is 21325565952.

It is a happy number.

25956552312 is a `hidden beast` number, since 2 + 5 + 9 + 565 + 52 + 31 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3301378 + ... + 3309230.

It is an arithmetic number, because the mean of its divisors is an integer number (758107350).

Almost surely, 2^25956552312 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 25956552312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36389152800).

25956552312 is an abundant number, since it is smaller than the sum of its proper divisors (46821753288).

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

25956552312 is a wasteful number, since it uses less digits than its factorization.

25956552312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477 (or 9470 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The spelling of 25956552312 in words is "twenty-five billion, nine hundred fifty-six million, five hundred fifty-two thousand, three hundred twelve".