25827855 has 8 divisors (see below), whose sum is σ = 41324592. Its totient is φ = 13774848.

The previous prime is 25827853. The next prime is 25827869. The reversal of 25827855 is 55872852.

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

It is not a de Polignac number, because 25827855 - 2¹ = 25827853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25827853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860914 + ... + 860943.

It is an arithmetic number, because the mean of its divisors is an integer number (5165574).

Almost surely, 2^25827855 is an apocalyptic number.

25827855 is a deficient number, since it is larger than the sum of its proper divisors (15496737).

25827855 is a wasteful number, since it uses less digits than its factorization.

25827855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721865.

The product of its digits is 224000, while the sum is 42.

The square root of 25827855 is about 5082.1112738703. Note that the first 3 decimals coincide. The cubic root of 25827855 is about 295.5943394549.

The spelling of 25827855 in words is "twenty-five million, eight hundred twenty-seven thousand, eight hundred fifty-five".