26397925 has 6 divisors (see below), whose sum is σ = 32733458. Its totient is φ = 21118320.

The previous prime is 26397911. The next prime is 26397937. The reversal of 26397925 is 52979362.

It can be written as a sum of positive squares in 3 ways, for example, as 408321 + 25989604 = 639^2 + 5098^2 .

It is not a de Polignac number, because 26397925 - 2⁵ = 26397893 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 527934 + ... + 527983.

Almost surely, 2^26397925 is an apocalyptic number.

26397925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26397925 is a deficient number, since it is larger than the sum of its proper divisors (6335533).

26397925 is a wasteful number, since it uses less digits than its factorization.

26397925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055927 (or 1055922 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 26397925 is about 5137.8911043345. The cubic root of 26397925 is about 297.7533091957.

The spelling of 26397925 in words is "twenty-six million, three hundred ninety-seven thousand, nine hundred twenty-five".