25807976260 has 144 divisors (see below), whose sum is σ = 63101243520. Its totient is φ = 8834918400.

The previous prime is 25807976251. The next prime is 25807976263. The reversal of 25807976260 is 6267970852.

It is a super-3 number, since 3×25807976260³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25807976198 and 25807976207.

It is not an unprimeable number, because it can be changed into a prime (25807976263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7676980 + ... + 7680340.

It is an arithmetic number, because the mean of its divisors is an integer number (438203080).

Almost surely, 2^25807976260 is an apocalyptic number.

25807976260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25807976260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31550621760).

25807976260 is an abundant number, since it is smaller than the sum of its proper divisors (37293267260).

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

25807976260 is a wasteful number, since it uses less digits than its factorization.

25807976260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 25807976260 in words is "twenty-five billion, eight hundred seven million, nine hundred seventy-six thousand, two hundred sixty".