165585527 has 2 divisors, whose sum is σ = 165585528. Its totient is φ = 165585526.

The previous prime is 165585523. The next prime is 165585529. The reversal of 165585527 is 725585561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165585527 - 2² = 165585523 is a prime.

Together with 165585529, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165585523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82792763 + 82792764.

It is an arithmetic number, because the mean of its divisors is an integer number (82792764).

Almost surely, 2^165585527 is an apocalyptic number.

165585527 is a deficient number, since it is larger than the sum of its proper divisors (1).

165585527 is an equidigital number, since it uses as much as digits as its factorization.

165585527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420000, while the sum is 44.

The square root of 165585527 is about 12868.0040021753. The cubic root of 165585527 is about 549.1286776608.

The spelling of 165585527 in words is "one hundred sixty-five million, five hundred eighty-five thousand, five hundred twenty-seven".