53161609 has 2 divisors, whose sum is σ = 53161610. Its totient is φ = 53161608.

The previous prime is 53161541. The next prime is 53161643. The reversal of 53161609 is 90616135.

53161609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34047225 + 19114384 = 5835^2 + 4372^2 .

It is a cyclic number.

It is not a de Polignac number, because 53161609 - 2⁷ = 53161481 is a prime.

It is not a weakly prime, because it can be changed into another prime (53161649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26580804 + 26580805.

It is an arithmetic number, because the mean of its divisors is an integer number (26580805).

Almost surely, 2^53161609 is an apocalyptic number.

It is an amenable number.

53161609 is a deficient number, since it is larger than the sum of its proper divisors (1).

53161609 is an equidigital number, since it uses as much as digits as its factorization.

53161609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 53161609 is about 7291.2007927364. The cubic root of 53161609 is about 376.0099802127.

The spelling of 53161609 in words is "fifty-three million, one hundred sixty-one thousand, six hundred nine".