26278055 has 8 divisors (see below), whose sum is σ = 31585344. Its totient is φ = 20988000.

The previous prime is 26278001. The next prime is 26278061. The reversal of 26278055 is 55087262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26278055 - 2¹⁸ = 26015911 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 7 ways as a sum of consecutive naturals, for example, 671 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (3948168).

Almost surely, 2^26278055 is an apocalyptic number.

26278055 is a deficient number, since it is larger than the sum of its proper divisors (5307289).

26278055 is an equidigital number, since it uses as much as digits as its factorization.

26278055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8617.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 26278055 is about 5126.2125394876. The cubic root of 26278055 is about 297.3019372305.

The spelling of 26278055 in words is "twenty-six million, two hundred seventy-eight thousand, fifty-five".