25041440000 has 180 divisors, whose sum is σ = 63661399956. Its totient is φ = 9824256000.

The previous prime is 25041439981. The next prime is 25041440023. The reversal of 25041440000 is 4414052.

It can be written as a sum of positive squares in 10 ways, for example, as 12504606976 + 12536833024 = 111824^2 + 111968^2 .

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8478524 + ... + 8481476.

Almost surely, 2^25041440000 is an apocalyptic number.

25041440000 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 25041440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31830699978).

25041440000 is an abundant number, since it is smaller than the sum of its proper divisors (38619959956).

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

25041440000 is an frugal number, since it uses more digits than its factorization.

25041440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 25041440000 its reverse (4414052), we get a palindrome (25045854052).

The spelling of 25041440000 in words is "twenty-five billion, forty-one million, four hundred forty thousand".