25730713536 has 448 divisors, whose sum is σ = 80004879360. Its totient is φ = 7225344000.

The previous prime is 25730713529. The next prime is 25730713609. The reversal of 25730713536 is 63531703752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 265265040 + ... + 265265136.

It is an arithmetic number, because the mean of its divisors is an integer number (178582320).

Almost surely, 2^25730713536 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 25730713536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40002439680).

25730713536 is an abundant number, since it is smaller than the sum of its proper divisors (54274165824).

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

25730713536 is a wasteful number, since it uses less digits than its factorization.

25730713536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 42.

The spelling of 25730713536 in words is "twenty-five billion, seven hundred thirty million, seven hundred thirteen thousand, five hundred thirty-six".