56005056011 has 4 divisors (see below), whose sum is σ = 56446040832. Its totient is φ = 55564071192.

The previous prime is 56005056007. The next prime is 56005056043. The reversal of 56005056011 is 11065050065.

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 56005056011 - 2² = 56005056007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56005056311) 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, 220492220 + ... + 220492473.

It is an arithmetic number, because the mean of its divisors is an integer number (14111510208).

Almost surely, 2^56005056011 is an apocalyptic number.

56005056011 is a deficient number, since it is larger than the sum of its proper divisors (440984821).

56005056011 is a wasteful number, since it uses less digits than its factorization.

56005056011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440984820.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 56005056011 in words is "fifty-six billion, five million, fifty-six thousand, eleven".