56705305 has 16 divisors (see below), whose sum is σ = 69333264. Its totient is φ = 44513280.

The previous prime is 56705303. The next prime is 56705323. The reversal of 56705305 is 50350765.

It can be written as a sum of positive squares in 8 ways, for example, as 3429904 + 53275401 = 1852^2 + 7299^2 .

It is not a de Polignac number, because 56705305 - 2¹ = 56705303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56705303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122775 + ... + 123235.

It is an arithmetic number, because the mean of its divisors is an integer number (4333329).

Almost surely, 2^56705305 is an apocalyptic number.

It is an amenable number.

56705305 is a deficient number, since it is larger than the sum of its proper divisors (12627959).

56705305 is a wasteful number, since it uses less digits than its factorization.

56705305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 56705305 is about 7530.2924909993. The cubic root of 56705305 is about 384.1857305555.

The spelling of 56705305 in words is "fifty-six million, seven hundred five thousand, three hundred five".