27983255 has 4 divisors (see below), whose sum is σ = 33579912. Its totient is φ = 22386600.

The previous prime is 27983191. The next prime is 27983273. The reversal of 27983255 is 55238972.

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

It is not a de Polignac number, because 27983255 - 2⁶ = 27983191 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798321 + ... + 2798330.

It is an arithmetic number, because the mean of its divisors is an integer number (8394978).

Almost surely, 2^27983255 is an apocalyptic number.

27983255 is a deficient number, since it is larger than the sum of its proper divisors (5596657).

27983255 is an equidigital number, since it uses as much as digits as its factorization.

27983255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596656.

The product of its digits is 151200, while the sum is 41.

The square root of 27983255 is about 5289.9201317222. The cubic root of 27983255 is about 303.5983521614.

The spelling of 27983255 in words is "twenty-seven million, nine hundred eighty-three thousand, two hundred fifty-five".