26856025 has 48 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 16934400.

The previous prime is 26856023. The next prime is 26856077. The reversal of 26856025 is 52065862.

It is not a de Polignac number, because 26856025 - 2¹ = 26856023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26856023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136227 + ... + 136423.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^26856025 is an apocalyptic number.

26856025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26856025 is a deficient number, since it is larger than the sum of its proper divisors (14391335).

26856025 is a wasteful number, since it uses less digits than its factorization.

26856025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 26856025 is about 5182.2799036717. The cubic root of 26856025 is about 299.4658086224.

The spelling of 26856025 in words is "twenty-six million, eight hundred fifty-six thousand, twenty-five".