27485105 has 4 divisors (see below), whose sum is σ = 32982132. Its totient is φ = 21988080.

The previous prime is 27485099. The next prime is 27485119. The reversal of 27485105 is 50158472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19351201 + 8133904 = 4399^2 + 2852^2 .

It is not a de Polignac number, because 27485105 - 2⁴ = 27485089 is a prime.

It is a super-2 number, since 2×27485105² = 1510861993722050, which contains 22 as substring.

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, 2748506 + ... + 2748515.

It is an arithmetic number, because the mean of its divisors is an integer number (8245533).

Almost surely, 2^27485105 is an apocalyptic number.

It is an amenable number.

27485105 is a deficient number, since it is larger than the sum of its proper divisors (5497027).

27485105 is an equidigital number, since it uses as much as digits as its factorization.

27485105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497026.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 27485105 is about 5242.6238659664. The cubic root of 27485105 is about 301.7860310610.

The spelling of 27485105 in words is "twenty-seven million, four hundred eighty-five thousand, one hundred five".