25103040000 has 400 divisors, whose sum is σ = 84881829120. Its totient is φ = 6589440000.

The previous prime is 25103039999. The next prime is 25103040023. The reversal of 25103040000 is 4030152.

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 (15).

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, 75839835 + ... + 75840165.

Almost surely, 2^25103040000 is an apocalyptic number.

25103040000 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 25103040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42440914560).

25103040000 is an abundant number, since it is smaller than the sum of its proper divisors (59778789120).

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

25103040000 is an frugal number, since it uses more digits than its factorization.

25103040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 25103040000 its reverse (4030152), we get a palindrome (25107070152).

The spelling of 25103040000 in words is "twenty-five billion, one hundred three million, forty thousand".