275605 has 8 divisors (see below), whose sum is σ = 360864. Its totient is φ = 200400.

The previous prime is 275599. The next prime is 275623. The reversal of 275605 is 506572.

It is a happy number.

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

It is not a de Polignac number, because 275605 - 2⁵ = 275573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2451 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (45108).

2²⁷⁵⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

275605 is a deficient number, since it is larger than the sum of its proper divisors (85259).

275605 is a wasteful number, since it uses less digits than its factorization.

275605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 275605 is about 524.9809520354. The cubic root of 275605 is about 65.0772257668.

It can be divided in two parts, 275 and 605, that multiplied together give a cube (166375 = 55³).

The spelling of 275605 in words is "two hundred seventy-five thousand, six hundred five".