26505225 has 36 divisors (see below), whose sum is σ = 49243376. Its totient is φ = 14132880.

The previous prime is 26505221. The next prime is 26505233. The reversal of 26505225 is 52250562.

26505225 is a `hidden beast` number, since 2 + 650 + 5 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 26505225 - 2² = 26505221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26505221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3894 + ... + 8256.

Almost surely, 2^26505225 is an apocalyptic number.

26505225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26505225 is a deficient number, since it is larger than the sum of its proper divisors (22738151).

26505225 is an equidigital number, since it uses as much as digits as its factorization.

26505225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388 (or 4371 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 26505225 is about 5148.3225423433. The cubic root of 26505225 is about 298.1561911118.

Adding to 26505225 its reverse (52250562), we get a palindrome (78755787).

It can be divided in two parts, 2650 and 5225, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 26505225 in words is "twenty-six million, five hundred five thousand, two hundred twenty-five".