56105010011 has 4 divisors (see below), whose sum is σ = 56414982624. Its totient is φ = 55795037400.

The previous prime is 56105010001. The next prime is 56105010037. The reversal of 56105010011 is 11001050165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56105010011 - 2¹⁰ = 56105008987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56105010001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154986035 + ... + 154986396.

It is an arithmetic number, because the mean of its divisors is an integer number (14103745656).

Almost surely, 2^56105010011 is an apocalyptic number.

56105010011 is a deficient number, since it is larger than the sum of its proper divisors (309972613).

56105010011 is a wasteful number, since it uses less digits than its factorization.

56105010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309972612.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 56105010011 its reverse (11001050165), we get a palindrome (67106060176).

The spelling of 56105010011 in words is "fifty-six billion, one hundred five million, ten thousand, eleven".