56273928191 has 4 divisors (see below), whose sum is σ = 60602691912. Its totient is φ = 51945164472.

The previous prime is 56273928169. The next prime is 56273928197. The reversal of 56273928191 is 19182937265.

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 56273928191 - 2¹⁴ = 56273911807 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 (56273928197) 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, 2164381841 + ... + 2164381866.

It is an arithmetic number, because the mean of its divisors is an integer number (15150672978).

Almost surely, 2^56273928191 is an apocalyptic number.

56273928191 is a deficient number, since it is larger than the sum of its proper divisors (4328763721).

56273928191 is a wasteful number, since it uses less digits than its factorization.

56273928191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328763720.

The product of its digits is 1632960, while the sum is 53.

The spelling of 56273928191 in words is "fifty-six billion, two hundred seventy-three million, nine hundred twenty-eight thousand, one hundred ninety-one".