25530125712 has 80 divisors (see below), whose sum is σ = 81172721280. Its totient is φ = 6733218816.

The previous prime is 25530125693. The next prime is 25530125723. The reversal of 25530125712 is 21752103552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2918037 + ... + 2926772.

It is an arithmetic number, because the mean of its divisors is an integer number (1014659016).

Almost surely, 2^25530125712 is an apocalyptic number.

It is an amenable number.

25530125712 is an abundant number, since it is smaller than the sum of its proper divisors (55642595568).

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

25530125712 is a wasteful number, since it uses less digits than its factorization.

25530125712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844840 (or 5844834 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 25530125712 in words is "twenty-five billion, five hundred thirty million, one hundred twenty-five thousand, seven hundred twelve".