25885655 has 8 divisors (see below), whose sum is σ = 31572384. Its totient is φ = 20368800.

The previous prime is 25885633. The next prime is 25885663. The reversal of 25885655 is 55658852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25885655 - 2²⁴ = 9108439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42131 + ... + 42740.

It is an arithmetic number, because the mean of its divisors is an integer number (3946548).

Almost surely, 2^25885655 is an apocalyptic number.

25885655 is a deficient number, since it is larger than the sum of its proper divisors (5686729).

25885655 is an equidigital number, since it uses as much as digits as its factorization.

25885655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84937.

The product of its digits is 480000, while the sum is 44.

The square root of 25885655 is about 5087.7947089088. The cubic root of 25885655 is about 295.8146780980.

The spelling of 25885655 in words is "twenty-five million, eight hundred eighty-five thousand, six hundred fifty-five".