26285555 has 4 divisors (see below), whose sum is σ = 31542672. Its totient is φ = 21028440.

The previous prime is 26285521. The next prime is 26285563. The reversal of 26285555 is 55558262.

It is a happy number.

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

It is not a de Polignac number, because 26285555 - 2¹⁴ = 26269171 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 2628551 + ... + 2628560.

It is an arithmetic number, because the mean of its divisors is an integer number (7885668).

Almost surely, 2^26285555 is an apocalyptic number.

26285555 is a deficient number, since it is larger than the sum of its proper divisors (5257117).

26285555 is an equidigital number, since it uses as much as digits as its factorization.

26285555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257116.

The product of its digits is 120000, while the sum is 38.

The square root of 26285555 is about 5126.9440215395. The cubic root of 26285555 is about 297.3302187811.

The spelling of 26285555 in words is "twenty-six million, two hundred eighty-five thousand, five hundred fifty-five".