56556006611 has 4 divisors (see below), whose sum is σ = 60906468672. Its totient is φ = 52205544552.

The previous prime is 56556006599. The next prime is 56556006631. The reversal of 56556006611 is 11660065565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11660065565 = 5 ⋅2332013113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56556006611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56556006631) 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, 2175231011 + ... + 2175231036.

It is an arithmetic number, because the mean of its divisors is an integer number (15226617168).

Almost surely, 2^56556006611 is an apocalyptic number.

56556006611 is a deficient number, since it is larger than the sum of its proper divisors (4350462061).

56556006611 is a wasteful number, since it uses less digits than its factorization.

56556006611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350462060.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 56556006611 in words is "fifty-six billion, five hundred fifty-six million, six thousand, six hundred eleven".