165263325 has 24 divisors (see below), whose sum is σ = 282053376. Its totient is φ = 85296000.

The previous prime is 165263321. The next prime is 165263347. The reversal of 165263325 is 523362561.

It is not a de Polignac number, because 165263325 - 2² = 165263321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165263321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33216 + ... + 37865.

It is an arithmetic number, because the mean of its divisors is an integer number (11752224).

Almost surely, 2^165263325 is an apocalyptic number.

165263325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165263325 is a deficient number, since it is larger than the sum of its proper divisors (116790051).

165263325 is a wasteful number, since it uses less digits than its factorization.

165263325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71125 (or 71120 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 165263325 is about 12855.4784041668. The cubic root of 165263325 is about 548.7722752532.

The spelling of 165263325 in words is "one hundred sixty-five million, two hundred sixty-three thousand, three hundred twenty-five".