25530052550528 has 128 divisors (see below), whose sum is σ = 52099073704800. Its totient is φ = 12457579806720.

The previous prime is 25530052550489. The next prime is 25530052550543. The reversal of 25530052550528 is 82505525003552.

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, 2510571428 + ... + 2510581596.

Almost surely, 2^{25530052550528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25530052550528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26049536852400).

25530052550528 is an abundant number, since it is smaller than the sum of its proper divisors (26569021154272).

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

25530052550528 is a wasteful number, since it uses less digits than its factorization.

25530052550528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728 (or 12716 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 47.

The spelling of 25530052550528 in words is "twenty-five trillion, five hundred thirty billion, fifty-two million, five hundred fifty thousand, five hundred twenty-eight".