26255647 has 4 divisors (see below), whose sum is σ = 28642536. Its totient is φ = 23868760.

The previous prime is 26255629. The next prime is 26255653. The reversal of 26255647 is 74655262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26255647 - 2⁷ = 26255519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26255687) 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 3 ways as a sum of consecutive naturals, for example, 1193428 + ... + 1193449.

It is an arithmetic number, because the mean of its divisors is an integer number (7160634).

Almost surely, 2^26255647 is an apocalyptic number.

26255647 is a deficient number, since it is larger than the sum of its proper divisors (2386889).

26255647 is a wasteful number, since it uses less digits than its factorization.

26255647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386888.

The product of its digits is 100800, while the sum is 37.

The square root of 26255647 is about 5124.0264441160. The cubic root of 26255647 is about 297.2174074290.

The spelling of 26255647 in words is "twenty-six million, two hundred fifty-five thousand, six hundred forty-seven".