53205161 has 2 divisors, whose sum is σ = 53205162. Its totient is φ = 53205160.

The previous prime is 53205143. The next prime is 53205181. The reversal of 53205161 is 16150235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 1638400 = 7181^2 + 1280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53205161 is a prime.

It is not a weakly prime, because it can be changed into another prime (53205181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26602580 + 26602581.

It is an arithmetic number, because the mean of its divisors is an integer number (26602581).

Almost surely, 2^53205161 is an apocalyptic number.

It is an amenable number.

53205161 is a deficient number, since it is larger than the sum of its proper divisors (1).

53205161 is an equidigital number, since it uses as much as digits as its factorization.

53205161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 53205161 is about 7294.1867949758. The cubic root of 53205161 is about 376.1126327161.

Adding to 53205161 its reverse (16150235), we get a palindrome (69355396).

The spelling of 53205161 in words is "fifty-three million, two hundred five thousand, one hundred sixty-one".