25003120000 has 160 divisors (see below), whose sum is σ = 63933534720. Its totient is φ = 9729792000.

The previous prime is 25003119893. The next prime is 25003120007. The reversal of 25003120000 is 2130052.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25003120007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2955777 + ... + 2964223.

It is an arithmetic number, because the mean of its divisors is an integer number (399584592).

Almost surely, 2^25003120000 is an apocalyptic number.

25003120000 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 25003120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31966767360).

25003120000 is an abundant number, since it is smaller than the sum of its proper divisors (38930414720).

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

25003120000 is an frugal number, since it uses more digits than its factorization.

25003120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518 (or 8491 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

Adding to 25003120000 its reverse (2130052), we get a palindrome (25005250052).

The spelling of 25003120000 in words is "twenty-five billion, three million, one hundred twenty thousand".