26279555 has 4 divisors (see below), whose sum is σ = 31535472. Its totient is φ = 21023640.

The previous prime is 26279551. The next prime is 26279567. The reversal of 26279555 is 55597262.

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

It is not a de Polignac number, because 26279555 - 2² = 26279551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26279551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2627951 + ... + 2627960.

It is an arithmetic number, because the mean of its divisors is an integer number (7883868).

Almost surely, 2^26279555 is an apocalyptic number.

26279555 is a deficient number, since it is larger than the sum of its proper divisors (5255917).

26279555 is an equidigital number, since it uses as much as digits as its factorization.

26279555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255916.

The product of its digits is 189000, while the sum is 41.

The square root of 26279555 is about 5126.3588442480. The cubic root of 26279555 is about 297.3075939711.

The spelling of 26279555 in words is "twenty-six million, two hundred seventy-nine thousand, five hundred fifty-five".