25667548752 has 120 divisors (see below), whose sum is σ = 69053437440. Its totient is φ = 8215101440.

The previous prime is 25667548747. The next prime is 25667548759. The reversal of 25667548752 is 25784576652.

It is a junction number, because it is equal to n+sod(n) for n = 25667548692 and 25667548701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25667548759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7708624 + ... + 7711952.

It is an arithmetic number, because the mean of its divisors is an integer number (575445312).

Almost surely, 2^25667548752 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 25667548752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34526718720).

25667548752 is an abundant number, since it is smaller than the sum of its proper divisors (43385888688).

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

25667548752 is a wasteful number, since it uses less digits than its factorization.

25667548752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3554 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 57.

The spelling of 25667548752 in words is "twenty-five billion, six hundred sixty-seven million, five hundred forty-eight thousand, seven hundred fifty-two".