56563081127 has 4 divisors (see below), whose sum is σ = 64643521296. Its totient is φ = 48482640960.

The previous prime is 56563081123. The next prime is 56563081147. The reversal of 56563081127 is 72118036565.

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 56563081127 - 2² = 56563081123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56563081121) 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, 4040220074 + ... + 4040220087.

It is an arithmetic number, because the mean of its divisors is an integer number (16160880324).

Almost surely, 2^56563081127 is an apocalyptic number.

56563081127 is a deficient number, since it is larger than the sum of its proper divisors (8080440169).

56563081127 is an equidigital number, since it uses as much as digits as its factorization.

56563081127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080440168.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 56563081127 in words is "fifty-six billion, five hundred sixty-three million, eighty-one thousand, one hundred twenty-seven".