56167228889 has 4 divisors (see below), whose sum is σ = 56452341924. Its totient is φ = 55882115856.

The previous prime is 56167228813. The next prime is 56167228891. The reversal of 56167228889 is 98882276165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39793467289 + 16373761600 = 199483^2 + 127960^2 .

It is a cyclic number.

It is not a de Polignac number, because 56167228889 - 2¹² = 56167224793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56167228589) 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, 142556222 + ... + 142556615.

It is an arithmetic number, because the mean of its divisors is an integer number (14113085481).

Almost surely, 2^56167228889 is an apocalyptic number.

It is an amenable number.

56167228889 is a deficient number, since it is larger than the sum of its proper divisors (285113035).

56167228889 is a wasteful number, since it uses less digits than its factorization.

56167228889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285113034.

The product of its digits is 23224320, while the sum is 62.

The spelling of 56167228889 in words is "fifty-six billion, one hundred sixty-seven million, two hundred twenty-eight thousand, eight hundred eighty-nine".