26404255 has 4 divisors (see below), whose sum is σ = 31685112. Its totient is φ = 21123400.

The previous prime is 26404241. The next prime is 26404267. The reversal of 26404255 is 55240462.

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

It is not a de Polignac number, because 26404255 - 2⁵ = 26404223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640421 + ... + 2640430.

It is an arithmetic number, because the mean of its divisors is an integer number (7921278).

Almost surely, 2^26404255 is an apocalyptic number.

26404255 is a deficient number, since it is larger than the sum of its proper divisors (5280857).

26404255 is an equidigital number, since it uses as much as digits as its factorization.

26404255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280856.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 26404255 is about 5138.5070789092. The cubic root of 26404255 is about 297.7771068719. Note that the first 3 decimals are identical.

The spelling of 26404255 in words is "twenty-six million, four hundred four thousand, two hundred fifty-five".