25878580 has 96 divisors (see below), whose sum is σ = 68302080. Its totient is φ = 8017920.

The previous prime is 25878553. The next prime is 25878581. The reversal of 25878580 is 8587852.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25878581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107260 + ... + 107500.

It is an arithmetic number, because the mean of its divisors is an integer number (711480).

Almost surely, 2^25878580 is an apocalyptic number.

25878580 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 25878580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34151040).

25878580 is an abundant number, since it is smaller than the sum of its proper divisors (42423500).

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

25878580 is a wasteful number, since it uses less digits than its factorization.

25878580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 25878580 is about 5087.0993699750. The cubic root of 25878580 is about 295.7877252091.

The spelling of 25878580 in words is "twenty-five million, eight hundred seventy-eight thousand, five hundred eighty".