25355016880 has 20 divisors (see below), whose sum is σ = 58950414432. Its totient is φ = 10142006720.

The previous prime is 25355016853. The next prime is 25355016917. The reversal of 25355016880 is 8861055352.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158468776 + ... + 158468935.

Almost surely, 2^25355016880 is an apocalyptic number.

25355016880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25355016880 is an abundant number, since it is smaller than the sum of its proper divisors (33595397552).

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

25355016880 is a wasteful number, since it uses less digits than its factorization.

25355016880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316937724 (or 316937718 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 25355016880 in words is "twenty-five billion, three hundred fifty-five million, sixteen thousand, eight hundred eighty".