53558161 has 2 divisors, whose sum is σ = 53558162. Its totient is φ = 53558160.

The previous prime is 53558149. The next prime is 53558201. The reversal of 53558161 is 16185535.

53558161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 3940225 = 7044^2 + 1985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53558161 is a prime.

It is not a weakly prime, because it can be changed into another prime (53528161) 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, 26779080 + 26779081.

It is an arithmetic number, because the mean of its divisors is an integer number (26779081).

Almost surely, 2^53558161 is an apocalyptic number.

It is an amenable number.

53558161 is a deficient number, since it is larger than the sum of its proper divisors (1).

53558161 is an equidigital number, since it uses as much as digits as its factorization.

53558161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 34.

The square root of 53558161 is about 7318.3441433155. The cubic root of 53558161 is about 376.9425973903.

The spelling of 53558161 in words is "fifty-three million, five hundred fifty-eight thousand, one hundred sixty-one".