25825600000 has 120 divisors (see below), whose sum is σ = 64500816996. Its totient is φ = 10329600000.

The previous prime is 25825599959. The next prime is 25825600019. The reversal of 25825600000 is 652852.

It can be written as a sum of positive squares in 6 ways, for example, as 3935805696 + 21889794304 = 62736^2 + 147952^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1591930 + ... + 1608070.

Almost surely, 2^25825600000 is an apocalyptic number.

25825600000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25825600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32250408498).

25825600000 is an abundant number, since it is smaller than the sum of its proper divisors (38675216996).

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

25825600000 is an frugal number, since it uses more digits than its factorization.

25825600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16184 (or 16148 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 25825600000 in words is "twenty-five billion, eight hundred twenty-five million, six hundred thousand".