56111556555051 has 16 divisors (see below), whose sum is σ = 77397720652800. Its totient is φ = 36116630754848.

The previous prime is 56111556555037. The next prime is 56111556555059. The reversal of 56111556555051 is 15055565511165.

56111556555051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56111556555051 - 2⁴² = 51713510043947 is a prime.

It is a super-2 number, since 2×56111556555051² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56111556554985 and 56111556555003.

It is not an unprimeable number, because it can be changed into a prime (56111556555059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7546971 + ... + 13006916.

It is an arithmetic number, because the mean of its divisors is an integer number (4837357540800).

Almost surely, 2^{56111556555051} is an apocalyptic number.

56111556555051 is a deficient number, since it is larger than the sum of its proper divisors (21286164097749).

56111556555051 is a wasteful number, since it uses less digits than its factorization.

56111556555051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20585298.

The product of its (nonzero) digits is 2812500, while the sum is 51.

The spelling of 56111556555051 in words is "fifty-six trillion, one hundred eleven billion, five hundred fifty-six million, five hundred fifty-five thousand, fifty-one".