25301122400 has 144 divisors (see below), whose sum is σ = 65232324864. Its totient is φ = 9563220480.

The previous prime is 25301122387. The next prime is 25301122421. The reversal of 25301122400 is 422110352.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1518917 + ... + 1535483.

It is an arithmetic number, because the mean of its divisors is an integer number (453002256).

Almost surely, 2^25301122400 is an apocalyptic number.

25301122400 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 25301122400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32616162432).

25301122400 is an abundant number, since it is smaller than the sum of its proper divisors (39931202464).

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

25301122400 is a wasteful number, since it uses less digits than its factorization.

25301122400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16693 (or 16680 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 25301122400 its reverse (422110352), we get a palindrome (25723232752).

The spelling of 25301122400 in words is "twenty-five billion, three hundred one million, one hundred twenty-two thousand, four hundred".