25504049909120 has 128 divisors (see below), whose sum is σ = 61723365949440. Its totient is φ = 10076187654144.

The previous prime is 25504049909119. The next prime is 25504049909189. The reversal of 25504049909120 is 2190994040552.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24742277 + ... + 25752443.

It is an arithmetic number, because the mean of its divisors is an integer number (482213796480).

Almost surely, 2^{25504049909120} is an apocalyptic number.

25504049909120 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 25504049909120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30861682974720).

25504049909120 is an abundant number, since it is smaller than the sum of its proper divisors (36219316040320).

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

25504049909120 is a wasteful number, since it uses less digits than its factorization.

25504049909120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010672 (or 1010660 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 25504049909120 in words is "twenty-five trillion, five hundred four billion, forty-nine million, nine hundred nine thousand, one hundred twenty".