27255363563 has 4 divisors (see below), whose sum is σ = 27505412880. Its totient is φ = 27005314248.

The previous prime is 27255363511. The next prime is 27255363571. The reversal of 27255363563 is 36536355272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27255363563 - 2¹⁴ = 27255347179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27255363263) 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, 125024495 + ... + 125024712.

It is an arithmetic number, because the mean of its divisors is an integer number (6876353220).

Almost surely, 2^27255363563 is an apocalyptic number.

27255363563 is a deficient number, since it is larger than the sum of its proper divisors (250049317).

27255363563 is a wasteful number, since it uses less digits than its factorization.

27255363563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250049316.

The product of its digits is 3402000, while the sum is 47.

The spelling of 27255363563 in words is "twenty-seven billion, two hundred fifty-five million, three hundred sixty-three thousand, five hundred sixty-three".