56705161 has 2 divisors, whose sum is σ = 56705162. Its totient is φ = 56705160.

The previous prime is 56705153. The next prime is 56705197. The reversal of 56705161 is 16150765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 13395600 = 6581^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 56705161 - 2³ = 56705153 is a prime.

It is not a weakly prime, because it can be changed into another prime (56705461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28352580 + 28352581.

It is an arithmetic number, because the mean of its divisors is an integer number (28352581).

Almost surely, 2^56705161 is an apocalyptic number.

It is an amenable number.

56705161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56705161 is an equidigital number, since it uses as much as digits as its factorization.

56705161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 56705161 is about 7530.2829296116. The cubic root of 56705161 is about 384.1854053491.

The spelling of 56705161 in words is "fifty-six million, seven hundred five thousand, one hundred sixty-one".