25885802880 has 256 divisors, whose sum is σ = 104776358400. Its totient is φ = 5916727296.

The previous prime is 25885802857. The next prime is 25885802903. The reversal of 25885802880 is 8820858852.

25885802880 is a `hidden beast` number, since 2 + 58 + 8 + 580 + 2 + 8 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25885802857) and next prime (25885802903).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 13959 + ... + 227961.

It is an arithmetic number, because the mean of its divisors is an integer number (409282650).

Almost surely, 2^25885802880 is an apocalyptic number.

25885802880 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 25885802880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52388179200).

25885802880 is an abundant number, since it is smaller than the sum of its proper divisors (78890555520).

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

25885802880 is a wasteful number, since it uses less digits than its factorization.

25885802880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214038 (or 214020 counting only the distinct ones).

The product of its (nonzero) digits is 3276800, while the sum is 54.

The spelling of 25885802880 in words is "twenty-five billion, eight hundred eighty-five million, eight hundred two thousand, eight hundred eighty".