25861752852 has 96 divisors (see below), whose sum is σ = 67209698304. Its totient is φ = 7686144000.

The previous prime is 25861752811. The next prime is 25861752857. The reversal of 25861752852 is 25825716852.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25861752795 and 25861752804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25861752857) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2688852 + ... + 2698452.

It is an arithmetic number, because the mean of its divisors is an integer number (700101024).

Almost surely, 2^25861752852 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 25861752852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33604849152).

25861752852 is an abundant number, since it is smaller than the sum of its proper divisors (41347945452).

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

25861752852 is a wasteful number, since it uses less digits than its factorization.

25861752852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10209 (or 10207 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 51.

The spelling of 25861752852 in words is "twenty-five billion, eight hundred sixty-one million, seven hundred fifty-two thousand, eight hundred fifty-two".