25881055200 has 2592 divisors, whose sum is σ = 136150035840. Its totient is φ = 4702924800.

The previous prime is 25881055183. The next prime is 25881055201. The reversal of 25881055200 is 255018852.

25881055200 is a `hidden beast` number, since 2 + 58 + 81 + 0 + 5 + 520 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2592).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25881055201) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 1362160791 + ... + 1362160809.

It is an arithmetic number, because the mean of its divisors is an integer number (52527020).

Almost surely, 2^25881055200 is an apocalyptic number.

25881055200 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 25881055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68075017920).

25881055200 is an abundant number, since it is smaller than the sum of its proper divisors (110268980640).

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

25881055200 is a wasteful number, since it uses less digits than its factorization.

25881055200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The spelling of 25881055200 in words is "twenty-five billion, eight hundred eighty-one million, fifty-five thousand, two hundred".