27271042553 has 4 divisors (see below), whose sum is σ = 27279088128. Its totient is φ = 27262996980.

The previous prime is 27271042549. The next prime is 27271042567. The reversal of 27271042553 is 35524017272.

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 a cyclic number.

It is not a de Polignac number, because 27271042553 - 2² = 27271042549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27271042543) 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, 4017701 + ... + 4024482.

It is an arithmetic number, because the mean of its divisors is an integer number (6819772032).

Almost surely, 2^27271042553 is an apocalyptic number.

It is an amenable number.

27271042553 is a deficient number, since it is larger than the sum of its proper divisors (8045575).

27271042553 is an equidigital number, since it uses as much as digits as its factorization.

27271042553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045574.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 27271042553 in words is "twenty-seven billion, two hundred seventy-one million, forty-two thousand, five hundred fifty-three".