25305388000 has 96 divisors (see below), whose sum is σ = 62499396960. Its totient is φ = 10069401600.

The previous prime is 25305387983. The next prime is 25305388027. The reversal of 25305388000 is 88350352.

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, 755611 + ... + 788389.

It is an arithmetic number, because the mean of its divisors is an integer number (651035385).

Almost surely, 2^25305388000 is an apocalyptic number.

25305388000 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 25305388000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31249698480).

25305388000 is an abundant number, since it is smaller than the sum of its proper divisors (37194008960).

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

25305388000 is a wasteful number, since it uses less digits than its factorization.

25305388000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32997 (or 32979 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 25305388000 in words is "twenty-five billion, three hundred five million, three hundred eighty-eight thousand".