25612566112 has 96 divisors (see below), whose sum is σ = 61067478528. Its totient is φ = 10322774016.

The previous prime is 25612566097. The next prime is 25612566131. The reversal of 25612566112 is 21166521652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7260093 + ... + 7263619.

It is an arithmetic number, because the mean of its divisors is an integer number (636119568).

Almost surely, 2^25612566112 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 25612566112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30533739264).

25612566112 is an abundant number, since it is smaller than the sum of its proper divisors (35454912416).

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

25612566112 is a wasteful number, since it uses less digits than its factorization.

25612566112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5468 (or 5460 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The spelling of 25612566112 in words is "twenty-five billion, six hundred twelve million, five hundred sixty-six thousand, one hundred twelve".