53165081 has 2 divisors, whose sum is σ = 53165082. Its totient is φ = 53165080.

The previous prime is 53165027. The next prime is 53165083. The reversal of 53165081 is 18056135.

53165081 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., 53158681 + 6400 = 7291^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 53165081 - 2¹⁰ = 53164057 is a prime.

It is a super-2 number, since 2×53165081² = 5653051675473122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 53165083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53165083) 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, 26582540 + 26582541.

It is an arithmetic number, because the mean of its divisors is an integer number (26582541).

Almost surely, 2^53165081 is an apocalyptic number.

It is an amenable number.

53165081 is a deficient number, since it is larger than the sum of its proper divisors (1).

53165081 is an equidigital number, since it uses as much as digits as its factorization.

53165081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 53165081 is about 7291.4388840612. The cubic root of 53165081 is about 376.0181658079.

The spelling of 53165081 in words is "fifty-three million, one hundred sixty-five thousand, eighty-one".