56005105515 has 32 divisors (see below), whose sum is σ = 92734156800. Its totient is φ = 28828195200.

The previous prime is 56005105493. The next prime is 56005105523. The reversal of 56005105515 is 51550150065.

It is not a de Polignac number, because 56005105515 - 2⁸ = 56005105259 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1159090 + ... + 1206440.

It is an arithmetic number, because the mean of its divisors is an integer number (2897942400).

Almost surely, 2^56005105515 is an apocalyptic number.

56005105515 is a deficient number, since it is larger than the sum of its proper divisors (36729051285).

56005105515 is a wasteful number, since it uses less digits than its factorization.

56005105515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50107.

The product of its (nonzero) digits is 18750, while the sum is 33.

It can be divided in two parts, 5600 and 5105515, that added together give a palindrome (5111115).

The spelling of 56005105515 in words is "fifty-six billion, five million, one hundred five thousand, five hundred fifteen".