56164443 has 4 divisors (see below), whose sum is σ = 74885928. Its totient is φ = 37442960.

The previous prime is 56164441. The next prime is 56164453. The reversal of 56164443 is 34446165.

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 56164443 - 2¹ = 56164441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56164441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9360738 + ... + 9360743.

It is an arithmetic number, because the mean of its divisors is an integer number (18721482).

Almost surely, 2^56164443 is an apocalyptic number.

56164443 is a deficient number, since it is larger than the sum of its proper divisors (18721485).

56164443 is a wasteful number, since it uses less digits than its factorization.

56164443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721484.

The product of its digits is 34560, while the sum is 33.

The square root of 56164443 is about 7494.2940294600. The cubic root of 56164443 is about 382.9603564782.

The spelling of 56164443 in words is "fifty-six million, one hundred sixty-four thousand, four hundred forty-three".