26439955 has 4 divisors (see below), whose sum is σ = 31727952. Its totient is φ = 21151960.

The previous prime is 26439929. The next prime is 26439977. The reversal of 26439955 is 55993462.

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

It is not a de Polignac number, because 26439955 - 2⁵ = 26439923 is a prime.

It is a Duffinian 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, 2643991 + ... + 2644000.

It is an arithmetic number, because the mean of its divisors is an integer number (7931988).

Almost surely, 2^26439955 is an apocalyptic number.

26439955 is a deficient number, since it is larger than the sum of its proper divisors (5287997).

26439955 is an equidigital number, since it uses as much as digits as its factorization.

26439955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287996.

The product of its digits is 291600, while the sum is 43.

The square root of 26439955 is about 5141.9796771283. The cubic root of 26439955 is about 297.9112500903.

The spelling of 26439955 in words is "twenty-six million, four hundred thirty-nine thousand, nine hundred fifty-five".