25805248 has 28 divisors (see below), whose sum is σ = 58523632. Its totient is φ = 11059200.

The previous prime is 25805239. The next prime is 25805267. The reversal of 25805248 is 84250852.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28353 + ... + 29248.

Almost surely, 2^25805248 is an apocalyptic number.

25805248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25805248 is an abundant number, since it is smaller than the sum of its proper divisors (32718384).

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

25805248 is an equidigital number, since it uses as much as digits as its factorization.

25805248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57620 (or 57610 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 25805248 is about 5079.8866129078. The cubic root of 25805248 is about 295.5080701680.

The spelling of 25805248 in words is "twenty-five million, eight hundred five thousand, two hundred forty-eight".