165575275 has 24 divisors (see below), whose sum is σ = 215771904. Its totient is φ = 125796000.

The previous prime is 165575273. The next prime is 165575351. The reversal of 165575275 is 572575561.

It is a happy number.

It is not a de Polignac number, because 165575275 - 2¹ = 165575273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165575273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85872 + ... + 87778.

It is an arithmetic number, because the mean of its divisors is an integer number (8990496).

Almost surely, 2^165575275 is an apocalyptic number.

165575275 is a deficient number, since it is larger than the sum of its proper divisors (50196629).

165575275 is a wasteful number, since it uses less digits than its factorization.

165575275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2086 counting only the distinct ones).

The product of its digits is 367500, while the sum is 43.

The square root of 165575275 is about 12867.6056436308. The cubic root of 165575275 is about 549.1173445782.

The spelling of 165575275 in words is "one hundred sixty-five million, five hundred seventy-five thousand, two hundred seventy-five".