25607425536 has 660 divisors, whose sum is σ = 96409230456. Its totient is φ = 6651279360.

The previous prime is 25607425511. The next prime is 25607425589. The reversal of 25607425536 is 63552470652.

25607425536 is a `hidden beast` number, since 2 + 5 + 607 + 4 + 2 + 5 + 5 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25607425491 and 25607425500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 2327947771 + ... + 2327947781.

Almost surely, 2^25607425536 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 25607425536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48204615228).

25607425536 is an abundant number, since it is smaller than the sum of its proper divisors (70801804920).

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

25607425536 is an frugal number, since it uses more digits than its factorization.

25607425536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 25607425536 in words is "twenty-five billion, six hundred seven million, four hundred twenty-five thousand, five hundred thirty-six".