56443473511 has 4 divisors (see below), whose sum is σ = 56465011224. Its totient is φ = 56421935800.

The previous prime is 56443473503. The next prime is 56443473521. The reversal of 56443473511 is 11537434465.

It is a happy number.

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 56443473511 - 2³ = 56443473503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56443473521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10764925 + ... + 10770166.

It is an arithmetic number, because the mean of its divisors is an integer number (14116252806).

Almost surely, 2^56443473511 is an apocalyptic number.

56443473511 is a deficient number, since it is larger than the sum of its proper divisors (21537713).

56443473511 is a wasteful number, since it uses less digits than its factorization.

56443473511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21537712.

The product of its digits is 604800, while the sum is 43.

The spelling of 56443473511 in words is "fifty-six billion, four hundred forty-three million, four hundred seventy-three thousand, five hundred eleven".