56005920029855 has 8 divisors (see below), whose sum is σ = 68308859840064. Its totient is φ = 44070232154400.

The previous prime is 56005920029797. The next prime is 56005920029911. The reversal of 56005920029855 is 55892002950065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56005920029855 - 2¹⁰ = 56005920028831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56005920029855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91812983351 + ... + 91812983960.

It is an arithmetic number, because the mean of its divisors is an integer number (8538607480008).

Almost surely, 2^{56005920029855} is an apocalyptic number.

56005920029855 is a deficient number, since it is larger than the sum of its proper divisors (12302939810209).

56005920029855 is a wasteful number, since it uses less digits than its factorization.

56005920029855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183625967377.

The product of its (nonzero) digits is 9720000, while the sum is 56.

The spelling of 56005920029855 in words is "fifty-six trillion, five billion, nine hundred twenty million, twenty-nine thousand, eight hundred fifty-five".