56316805 has 4 divisors (see below), whose sum is σ = 67580172. Its totient is φ = 45053440.

The previous prime is 56316803. The next prime is 56316829. The reversal of 56316805 is 50861365.

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 44715969 + 11600836 = 6687^2 + 3406^2 .

It is not a de Polignac number, because 56316805 - 2¹ = 56316803 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 (56316803) 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, 5631676 + ... + 5631685.

It is an arithmetic number, because the mean of its divisors is an integer number (16895043).

Almost surely, 2^56316805 is an apocalyptic number.

It is an amenable number.

56316805 is a deficient number, since it is larger than the sum of its proper divisors (11263367).

56316805 is a wasteful number, since it uses less digits than its factorization.

56316805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11263366.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 56316805 is about 7504.4523451082. The cubic root of 56316805 is about 383.3063400442.

It can be divided in two parts, 56316 and 805, that added together give a square (57121 = 239²).

The spelling of 56316805 in words is "fifty-six million, three hundred sixteen thousand, eight hundred five".