25305000003200 has 96 divisors (see below), whose sum is σ = 62538609207360. Its totient is φ = 10117571189760.

The previous prime is 25305000003193. The next prime is 25305000003233. The reversal of 25305000003200 is 230000050352.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5589539 + ... + 9047261.

It is an arithmetic number, because the mean of its divisors is an integer number (651443845910).

Almost surely, 2^{25305000003200} is an apocalyptic number.

25305000003200 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 25305000003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31269304603680).

25305000003200 is an abundant number, since it is smaller than the sum of its proper divisors (37233609204160).

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

25305000003200 is a wasteful number, since it uses less digits than its factorization.

25305000003200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460034 (or 3460017 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

Adding to 25305000003200 its reverse (230000050352), we get a palindrome (25535000053552).

The spelling of 25305000003200 in words is "twenty-five trillion, three hundred five billion, three thousand, two hundred".