25679960 has 64 divisors (see below), whose sum is σ = 61102080. Its totient is φ = 9694080.

The previous prime is 25679959. The next prime is 25679989. The reversal of 25679960 is 6997652.

25679960 = 82² + 83² + ... + 426².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94625 + ... + 94895.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 2^25679960 is an apocalyptic number.

25679960 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 25679960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30551040).

25679960 is an abundant number, since it is smaller than the sum of its proper divisors (35422120).

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

25679960 is a wasteful number, since it uses less digits than its factorization.

25679960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 25679960 is about 5067.5398370412. The cubic root of 25679960 is about 295.0290500933.

The spelling of 25679960 in words is "twenty-five million, six hundred seventy-nine thousand, nine hundred sixty".