25305747712 has 144 divisors (see below), whose sum is σ = 58546962432. Its totient is φ = 10692864000.

The previous prime is 25305747673. The next prime is 25305747737. The reversal of 25305747712 is 21774750352.

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 15 ways as a sum of consecutive naturals, for example, 57123363 + ... + 57123805.

It is an arithmetic number, because the mean of its divisors is an integer number (406576128).

Almost surely, 2^25305747712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25305747712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29273481216).

25305747712 is an abundant number, since it is smaller than the sum of its proper divisors (33241214720).

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

25305747712 is a wasteful number, since it uses less digits than its factorization.

25305747712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 43.

The spelling of 25305747712 in words is "twenty-five billion, three hundred five million, seven hundred forty-seven thousand, seven hundred twelve".