26538625 has 16 divisors (see below), whose sum is σ = 34266960. Its totient is φ = 20496000.

The previous prime is 26538623. The next prime is 26538641. The reversal of 26538625 is 52683562.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18249984 + 8288641 = 4272^2 + 2879^2 .

It is not a de Polignac number, because 26538625 - 2¹ = 26538623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26538623) 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 15 ways as a sum of consecutive naturals, for example, 36 + ... + 7285.

It is an arithmetic number, because the mean of its divisors is an integer number (2141685).

Almost surely, 2^26538625 is an apocalyptic number.

26538625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26538625 is a deficient number, since it is larger than the sum of its proper divisors (7728335).

26538625 is an equidigital number, since it uses as much as digits as its factorization.

26538625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7355 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 26538625 is about 5151.5652961018. The cubic root of 26538625 is about 298.2813769540.

The spelling of 26538625 in words is "twenty-six million, five hundred thirty-eight thousand, six hundred twenty-five".