275505 has 8 divisors (see below), whose sum is σ = 440832. Its totient is φ = 146928.

The previous prime is 275503. The next prime is 275521. The reversal of 275505 is 505572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 275505 - 2¹ = 275503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9169 + ... + 9198.

It is an arithmetic number, because the mean of its divisors is an integer number (55104).

2²⁷⁵⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

275505 is a deficient number, since it is larger than the sum of its proper divisors (165327).

275505 is a wasteful number, since it uses less digits than its factorization.

275505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18375.

The product of its (nonzero) digits is 1750, while the sum is 24.

The square root of 275505 is about 524.8857018437. The cubic root of 275505 is about 65.0693539820.

It can be divided in two parts, 275 and 505, that added together give a triangular number (780 = T₃₉).

The spelling of 275505 in words is "two hundred seventy-five thousand, five hundred five".