25948807920 has 1280 divisors, whose sum is σ = 115192627200. Its totient is φ = 5237084160.

The previous prime is 25948807823. The next prime is 25948807931. The reversal of 25948807920 is 2970884952.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 312636199 + ... + 312636281.

It is an arithmetic number, because the mean of its divisors is an integer number (89994240).

Almost surely, 2^25948807920 is an apocalyptic number.

25948807920 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 25948807920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57596313600).

25948807920 is an abundant number, since it is smaller than the sum of its proper divisors (89243819280).

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

25948807920 is a wasteful number, since it uses less digits than its factorization.

25948807920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 25948807920 in words is "twenty-five billion, nine hundred forty-eight million, eight hundred seven thousand, nine hundred twenty".