165755533 has 2 divisors, whose sum is σ = 165755534. Its totient is φ = 165755532.

The previous prime is 165755507. The next prime is 165755567. The reversal of 165755533 is 335557561.

165755533 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 can be written as a sum of positive squares in only one way, i.e., 164172969 + 1582564 = 12813^2 + 1258^2 .

It is an emirp because it is prime and its reverse (335557561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165755533 is a prime.

It is a super-2 number, since 2×165755533² = 54949793440228178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165755633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82877766 + 82877767.

It is an arithmetic number, because the mean of its divisors is an integer number (82877767).

Almost surely, 2^165755533 is an apocalyptic number.

It is an amenable number.

165755533 is a deficient number, since it is larger than the sum of its proper divisors (1).

165755533 is an equidigital number, since it uses as much as digits as its factorization.

165755533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236250, while the sum is 40.

The square root of 165755533 is about 12874.6080717046. The cubic root of 165755533 is about 549.3165427896.

The spelling of 165755533 in words is "one hundred sixty-five million, seven hundred fifty-five thousand, five hundred thirty-three".