27550275505 has 8 divisors (see below), whose sum is σ = 33387661224. Its totient is φ = 21822000000.

The previous prime is 27550275491. The next prime is 27550275539. The reversal of 27550275505 is 50557205572.

It can be written as a sum of positive squares in 4 ways, for example, as 18661745664 + 8888529841 = 136608^2 + 94279^2 .

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

It is not a de Polignac number, because 27550275505 - 2²¹ = 27548178353 is a prime.

It is a Duffinian number.

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, 27276996 + ... + 27278005.

It is an arithmetic number, because the mean of its divisors is an integer number (4173457653).

Almost surely, 2^27550275505 is an apocalyptic number.

It is an amenable number.

27550275505 is a deficient number, since it is larger than the sum of its proper divisors (5837385719).

27550275505 is a wasteful number, since it uses less digits than its factorization.

27550275505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54555107.

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

The spelling of 27550275505 in words is "twenty-seven billion, five hundred fifty million, two hundred seventy-five thousand, five hundred five".