56021533512065 has 12 divisors (see below), whose sum is σ = 73892865691092. Its totient is φ = 40742933462880.

The previous prime is 56021533512011. The next prime is 56021533512089.

56021533512065 is nontrivially palindromic in base 10.

56021533512065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39706041420529 + 16315492091536 = 6301273^2 + 4039244^2 .

It is not a de Polignac number, because 56021533512065 - 2¹² = 56021533507969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 46298787422 + ... + 46298788631.

It is an arithmetic number, because the mean of its divisors is an integer number (6157738807591).

Almost surely, 2^{56021533512065} is an apocalyptic number.

56021533512065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56021533512065 is a deficient number, since it is larger than the sum of its proper divisors (17871332179027).

56021533512065 is a wasteful number, since it uses less digits than its factorization.

56021533512065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92597576080 (or 92597576069 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 56021533512065 in words is "fifty-six trillion, twenty-one billion, five hundred thirty-three million, five hundred twelve thousand, sixty-five".