25681088 has 28 divisors (see below), whose sum is σ = 52209192. Its totient is φ = 12526080.

The previous prime is 25681081. The next prime is 25681091. The reversal of 25681088 is 88018652.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25681081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (1864614).

Almost surely, 2^25681088 is an apocalyptic number.

It is an amenable number.

25681088 is an abundant number, since it is smaller than the sum of its proper divisors (26528104).

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

25681088 is an equidigital number, since it uses as much as digits as its factorization.

25681088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840 (or 9830 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 25681088 is about 5067.6511324281. The cubic root of 25681088 is about 295.0333697768.

The spelling of 25681088 in words is "twenty-five million, six hundred eighty-one thousand, eighty-eight".