27255155811 has 24 divisors (see below), whose sum is σ = 40493360880. Its totient is φ = 16190745984.

The previous prime is 27255155761. The next prime is 27255155831. The reversal of 27255155811 is 11855155272.

It is not a de Polignac number, because 27255155811 - 2⁹ = 27255155299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27255155831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5549625 + ... + 5554533.

It is an arithmetic number, because the mean of its divisors is an integer number (1687223370).

Almost surely, 2^27255155811 is an apocalyptic number.

27255155811 is a deficient number, since it is larger than the sum of its proper divisors (13238205069).

27255155811 is an frugal number, since it uses more digits than its factorization.

27255155811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863 (or 4954 counting only the distinct ones).

The product of its digits is 140000, while the sum is 42.

The spelling of 27255155811 in words is "twenty-seven billion, two hundred fifty-five million, one hundred fifty-five thousand, eight hundred eleven".