25526783564772 has 72 divisors (see below), whose sum is σ = 69330048671520. Its totient is φ = 7288833605760.

The previous prime is 25526783564717. The next prime is 25526783564993. The reversal of 25526783564772 is 27746538762552.

It is a junction number, because it is equal to n+sod(n) for n = 25526783564697 and 25526783564706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12544554 + ... + 14436737.

It is an arithmetic number, because the mean of its divisors is an integer number (962917342660).

Almost surely, 2^{25526783564772} is an apocalyptic number.

It is an amenable number.

25526783564772 is an abundant number, since it is smaller than the sum of its proper divisors (43803265106748).

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

25526783564772 is a wasteful number, since it uses less digits than its factorization.

25526783564772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26982921 (or 26982912 counting only the distinct ones).

The product of its digits is 1185408000, while the sum is 69.

The spelling of 25526783564772 in words is "twenty-five trillion, five hundred twenty-six billion, seven hundred eighty-three million, five hundred sixty-four thousand, seven hundred seventy-two".