53509163 has 2 divisors, whose sum is σ = 53509164. Its totient is φ = 53509162.

The previous prime is 53509153. The next prime is 53509213. The reversal of 53509163 is 36190535.

53509163 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53509163 is a prime.

It is not a weakly prime, because it can be changed into another prime (53509103) 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, 26754581 + 26754582.

It is an arithmetic number, because the mean of its divisors is an integer number (26754582).

Almost surely, 2^53509163 is an apocalyptic number.

53509163 is a deficient number, since it is larger than the sum of its proper divisors (1).

53509163 is an equidigital number, since it uses as much as digits as its factorization.

53509163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 53509163 is about 7314.9957621314. The cubic root of 53509163 is about 376.8276129311.

Adding to 53509163 its reverse (36190535), we get a palindrome (89699698).

The spelling of 53509163 in words is "fifty-three million, five hundred nine thousand, one hundred sixty-three".