27505030505 has 16 divisors (see below), whose sum is σ = 33839527680. Its totient is φ = 21452009472.

The previous prime is 27505030499. The next prime is 27505030513. The reversal of 27505030505 is 50503050572.

It is a cyclic number.

It is not a de Polignac number, because 27505030505 - 2²⁰ = 27503981929 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, 167315 + ... + 288104.

It is an arithmetic number, because the mean of its divisors is an integer number (2114970480).

Almost surely, 2^27505030505 is an apocalyptic number.

It is an amenable number.

27505030505 is a deficient number, since it is larger than the sum of its proper divisors (6334497175).

27505030505 is a wasteful number, since it uses less digits than its factorization.

27505030505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455728.

The product of its (nonzero) digits is 26250, while the sum is 32.

The spelling of 27505030505 in words is "twenty-seven billion, five hundred five million, thirty thousand, five hundred five".