25231360000 has 400 divisors, whose sum is σ = 78617959200. Its totient is φ = 7864320000.

The previous prime is 25231359997. The next prime is 25231360027. The reversal of 25231360000 is 6313252.

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 (22).

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, 2293759995 + ... + 2293760005.

It is an arithmetic number, because the mean of its divisors is an integer number (196544898).

Almost surely, 2^25231360000 is an apocalyptic number.

25231360000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25231360000 is a droll number since its even prime factors and its odd prime factors have the same sum.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25231360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39308979600).

25231360000 is an abundant number, since it is smaller than the sum of its proper divisors (53386599200).

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

25231360000 is an frugal number, since it uses more digits than its factorization.

25231360000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 25231360000 its reverse (6313252), we get a palindrome (25237673252).

The spelling of 25231360000 in words is "twenty-five billion, two hundred thirty-one million, three hundred sixty thousand".