56005511001 has 16 divisors (see below), whose sum is σ = 82493736960. Its totient is φ = 33513077520.

The previous prime is 56005510963. The next prime is 56005511017. The reversal of 56005511001 is 10011550065.

It is not a de Polignac number, because 56005511001 - 2¹⁴ = 56005494617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56005511201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10738765 + ... + 10743978.

It is an arithmetic number, because the mean of its divisors is an integer number (5155858560).

Almost surely, 2^56005511001 is an apocalyptic number.

It is an amenable number.

56005511001 is a deficient number, since it is larger than the sum of its proper divisors (26488225959).

56005511001 is a wasteful number, since it uses less digits than its factorization.

56005511001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482836.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 56005511001 in words is "fifty-six billion, five million, five hundred eleven thousand, one".