56205530105 has 16 divisors (see below), whose sum is σ = 71033457600. Its totient is φ = 42575676480.

The previous prime is 56205530057. The next prime is 56205530111. The reversal of 56205530105 is 50103550265.

It is a de Polignac number, because none of the positive numbers 2^k-56205530105 is a prime.

It is a super-2 number, since 2×56205530105² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30251 + ... + 336639.

It is an arithmetic number, because the mean of its divisors is an integer number (4439591100).

Almost surely, 2^56205530105 is an apocalyptic number.

It is an amenable number.

56205530105 is a deficient number, since it is larger than the sum of its proper divisors (14827927495).

56205530105 is a wasteful number, since it uses less digits than its factorization.

56205530105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308344.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 56205530105 in words is "fifty-six billion, two hundred five million, five hundred thirty thousand, one hundred five".