25780960 has 48 divisors (see below), whose sum is σ = 61236000. Its totient is φ = 10256896.

The previous prime is 25780943. The next prime is 25780961. The reversal of 25780960 is 6908752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25780961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42741 + ... + 43339.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750).

Almost surely, 2^25780960 is an apocalyptic number.

25780960 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 25780960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30618000).

25780960 is an abundant number, since it is smaller than the sum of its proper divisors (35455040).

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

25780960 is a wasteful number, since it uses less digits than its factorization.

25780960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 25780960 is about 5077.4954455913. The cubic root of 25780960 is about 295.4153299503.

The spelling of 25780960 in words is "twenty-five million, seven hundred eighty thousand, nine hundred sixty".