27755055585 has 12 divisors (see below), whose sum is σ = 48108763092. Its totient is φ = 14802696288.

The previous prime is 27755055583. The next prime is 27755055599. The reversal of 27755055585 is 58555055772.

27755055585 is a `hidden beast` number, since 2 + 7 + 7 + 5 + 5 + 0 + 55 + 585 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21917025936 + 5838029649 = 148044^2 + 76407^2 .

It is not a de Polignac number, because 27755055585 - 2¹ = 27755055583 is a prime.

It is a super-2 number, since 2×27755055585² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27755055583) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 308389462 + ... + 308389551.

It is an arithmetic number, because the mean of its divisors is an integer number (4009063591).

Almost surely, 2^27755055585 is an apocalyptic number.

It is an amenable number.

27755055585 is a deficient number, since it is larger than the sum of its proper divisors (20353707507).

27755055585 is a wasteful number, since it uses less digits than its factorization.

27755055585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616779024 (or 616779021 counting only the distinct ones).

The product of its (nonzero) digits is 12250000, while the sum is 54.

The spelling of 27755055585 in words is "twenty-seven billion, seven hundred fifty-five million, fifty-five thousand, five hundred eighty-five".