26042555 has 64 divisors (see below), whose sum is σ = 43296768. Its totient is φ = 14530560.

The previous prime is 26042543. The next prime is 26042579. The reversal of 26042555 is 55524062.

It is not a de Polignac number, because 26042555 - 2⁶ = 26042491 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 63 ways as a sum of consecutive naturals, for example, 150449 + ... + 150621.

It is an arithmetic number, because the mean of its divisors is an integer number (676512).

Almost surely, 2^26042555 is an apocalyptic number.

26042555 is a deficient number, since it is larger than the sum of its proper divisors (17254213).

26042555 is a wasteful number, since it uses less digits than its factorization.

26042555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 26042555 is about 5103.1906685916. The cubic root of 26042555 is about 296.4111456899.

The spelling of 26042555 in words is "twenty-six million, forty-two thousand, five hundred fifty-five".