56016805 has 8 divisors (see below), whose sum is σ = 72391032. Its totient is φ = 41366208.

The previous prime is 56016803. The next prime is 56016817. The reversal of 56016805 is 50861065.

It can be written as a sum of positive squares in 4 ways, for example, as 36481 + 55980324 = 191^2 + 7482^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56016805 - 2¹ = 56016803 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 (56016803) 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 7 ways as a sum of consecutive naturals, for example, 430834 + ... + 430963.

It is an arithmetic number, because the mean of its divisors is an integer number (9048879).

Almost surely, 2^56016805 is an apocalyptic number.

It is an amenable number.

56016805 is a deficient number, since it is larger than the sum of its proper divisors (16374227).

56016805 is a wasteful number, since it uses less digits than its factorization.

56016805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861815.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 56016805 is about 7484.4375206157. The cubic root of 56016805 is about 382.6245027371.

The spelling of 56016805 in words is "fifty-six million, sixteen thousand, eight hundred five".