25794780 has 192 divisors, whose sum is σ = 88542720. Its totient is φ = 5575680.

The previous prime is 25794779. The next prime is 25794787. The reversal of 25794780 is 8749752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25794787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1357611 + ... + 1357629.

It is an arithmetic number, because the mean of its divisors is an integer number (461160).

Almost surely, 2^25794780 is an apocalyptic number.

25794780 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 25794780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44271360).

25794780 is an abundant number, since it is smaller than the sum of its proper divisors (62747940).

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

25794780 is a wasteful number, since it uses less digits than its factorization.

25794780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 25794780 is about 5078.8561704384. The cubic root of 25794780 is about 295.4681067614.

The spelling of 25794780 in words is "twenty-five million, seven hundred ninety-four thousand, seven hundred eighty".