27550550505 has 8 divisors (see below), whose sum is σ = 44080880832. Its totient is φ = 14693626928.

The previous prime is 27550550491. The next prime is 27550550561. The reversal of 27550550505 is 50505505572.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27550550505 - 2³⁰ = 26476808681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918351669 + ... + 918351698.

It is an arithmetic number, because the mean of its divisors is an integer number (5510110104).

Almost surely, 2^27550550505 is an apocalyptic number.

It is an amenable number.

27550550505 is a deficient number, since it is larger than the sum of its proper divisors (16530330327).

27550550505 is a wasteful number, since it uses less digits than its factorization.

27550550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836703375.

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 27550550505 in words is "twenty-seven billion, five hundred fifty million, five hundred fifty thousand, five hundred five".