27755025505 has 16 divisors (see below), whose sum is σ = 34565356800. Its totient is φ = 21369396160.

The previous prime is 27755025461. The next prime is 27755025581. The reversal of 27755025505 is 50552055772.

It is not a de Polignac number, because 27755025505 - 2¹⁹ = 27754501217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262645 + ... + 352834.

It is an arithmetic number, because the mean of its divisors is an integer number (2160334800).

Almost surely, 2^27755025505 is an apocalyptic number.

It is an amenable number.

27755025505 is a deficient number, since it is larger than the sum of its proper divisors (6810331295).

27755025505 is a wasteful number, since it uses less digits than its factorization.

27755025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615824.

The product of its (nonzero) digits is 612500, while the sum is 43.

The spelling of 27755025505 in words is "twenty-seven billion, seven hundred fifty-five million, twenty-five thousand, five hundred five".