26455805 has 4 divisors (see below), whose sum is σ = 31746972. Its totient is φ = 21164640.

The previous prime is 26455799. The next prime is 26455823. The reversal of 26455805 is 50855462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15413476 + 11042329 = 3926^2 + 3323^2 .

It is not a de Polignac number, because 26455805 - 2⁴ = 26455789 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645576 + ... + 2645585.

It is an arithmetic number, because the mean of its divisors is an integer number (7936743).

Almost surely, 2^26455805 is an apocalyptic number.

It is an amenable number.

26455805 is a deficient number, since it is larger than the sum of its proper divisors (5291167).

26455805 is an equidigital number, since it uses as much as digits as its factorization.

26455805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291166.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 26455805 is about 5143.5206814010. The cubic root of 26455805 is about 297.9707679688.

The spelling of 26455805 in words is "twenty-six million, four hundred fifty-five thousand, eight hundred five".