53165569 has 2 divisors, whose sum is σ = 53165570. Its totient is φ = 53165568.

The previous prime is 53165557. The next prime is 53165597. The reversal of 53165569 is 96556135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 50625 = 7288^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 53165569 - 2⁵ = 53165537 is a prime.

It is a super-2 number, since 2×53165569² = 5653155454187522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53165509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26582784 + 26582785.

It is an arithmetic number, because the mean of its divisors is an integer number (26582785).

Almost surely, 2^53165569 is an apocalyptic number.

It is an amenable number.

53165569 is a deficient number, since it is larger than the sum of its proper divisors (1).

53165569 is an equidigital number, since it uses as much as digits as its factorization.

53165569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 40.

The square root of 53165569 is about 7291.4723478869. The cubic root of 53165569 is about 376.0193162892.

The spelling of 53165569 in words is "fifty-three million, one hundred sixty-five thousand, five hundred sixty-nine".