25548480000 has 400 divisors, whose sum is σ = 94533302160. Its totient is φ = 6810624000.

The previous prime is 25548479981. The next prime is 25548480011. The reversal of 25548480000 is 8484552.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8638522 + ... + 8641478.

Almost surely, 2^25548480000 is an apocalyptic number.

25548480000 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 25548480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47266651080).

25548480000 is an abundant number, since it is smaller than the sum of its proper divisors (68984822160).

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

25548480000 is an frugal number, since it uses more digits than its factorization.

25548480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 25548480000 in words is "twenty-five billion, five hundred forty-eight million, four hundred eighty thousand".