27275502549 has 4 divisors (see below), whose sum is σ = 36367336736. Its totient is φ = 18183668364.

The previous prime is 27275502547. The next prime is 27275502563. The reversal of 27275502549 is 94520557272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27275502549 - 2¹ = 27275502547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27275502498 and 27275502507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27275502547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545917089 + ... + 4545917094.

It is an arithmetic number, because the mean of its divisors is an integer number (9091834184).

Almost surely, 2^27275502549 is an apocalyptic number.

It is an amenable number.

27275502549 is a deficient number, since it is larger than the sum of its proper divisors (9091834187).

27275502549 is an equidigital number, since it uses as much as digits as its factorization.

27275502549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091834186.

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 27275502549 in words is "twenty-seven billion, two hundred seventy-five million, five hundred two thousand, five hundred forty-nine".