26566025 has 12 divisors (see below), whose sum is σ = 33247500. Its totient is φ = 21055680.

The previous prime is 26566013. The next prime is 26566031. The reversal of 26566025 is 52066562.

It can be written as a sum of positive squares in 6 ways, for example, as 1485961 + 25080064 = 1219^2 + 5008^2 .

It is not a de Polignac number, because 26566025 - 2¹² = 26561929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26565982 and 26566000.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2150 + ... + 7599.

It is an arithmetic number, because the mean of its divisors is an integer number (2770625).

Almost surely, 2^26566025 is an apocalyptic number.

26566025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26566025 is a deficient number, since it is larger than the sum of its proper divisors (6681475).

26566025 is a wasteful number, since it uses less digits than its factorization.

26566025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868 (or 9863 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 26566025 is about 5154.2239959086. The cubic root of 26566025 is about 298.3839959180.

The spelling of 26566025 in words is "twenty-six million, five hundred sixty-six thousand, twenty-five".