273505 has 8 divisors (see below), whose sum is σ = 345600. Its totient is φ = 207216.

The previous prime is 273503. The next prime is 273517. The reversal of 273505 is 505372.

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

It is a cyclic number.

It is not a de Polignac number, because 273505 - 2¹ = 273503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (273503) 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, 1345 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2²⁷³⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

273505 is a deficient number, since it is larger than the sum of its proper divisors (72095).

273505 is a wasteful number, since it uses less digits than its factorization.

273505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 273505 is about 522.9770549460. The cubic root of 273505 is about 64.9115166848.

Adding to 273505 its reverse (505372), we get a palindrome (778877).

The spelling of 273505 in words is "two hundred seventy-three thousand, five hundred five".