25296673940 has 96 divisors (see below), whose sum is σ = 56001684480. Its totient is φ = 9586252800.

The previous prime is 25296673907. The next prime is 25296673957. The reversal of 25296673940 is 4937669252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6289130 + ... + 6293150.

It is an arithmetic number, because the mean of its divisors is an integer number (583350880).

Almost surely, 2^25296673940 is an apocalyptic number.

25296673940 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 25296673940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28000842240).

25296673940 is an abundant number, since it is smaller than the sum of its proper divisors (30705010540).

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

25296673940 is a wasteful number, since it uses less digits than its factorization.

25296673940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 25296673940 in words is "twenty-five billion, two hundred ninety-six million, six hundred seventy-three thousand, nine hundred forty".