25528286080 has 128 divisors (see below), whose sum is σ = 66647460960. Its totient is φ = 9273139200.

The previous prime is 25528286059. The next prime is 25528286111. The reversal of 25528286080 is 8068282552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25528286080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11410722 + ... + 11412958.

Almost surely, 2^25528286080 is an apocalyptic number.

25528286080 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 25528286080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33323730480).

25528286080 is an abundant number, since it is smaller than the sum of its proper divisors (41119174880).

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

25528286080 is a wasteful number, since it uses less digits than its factorization.

25528286080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 25528286080 in words is "twenty-five billion, five hundred twenty-eight million, two hundred eighty-six thousand, eighty".