305275 has 6 divisors (see below), whose sum is σ = 378572. Its totient is φ = 244200.

The previous prime is 305267. The next prime is 305281. The reversal of 305275 is 572503.

It is not a de Polignac number, because 305275 - 2³ = 305267 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6081 + ... + 6130.

2³⁰⁵²⁷⁵ is an apocalyptic number.

305275 is a deficient number, since it is larger than the sum of its proper divisors (73297).

305275 is a wasteful number, since it uses less digits than its factorization.

305275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221 (or 12216 counting only the distinct ones).

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

The square root of 305275 is about 552.5169680652. The cubic root of 305275 is about 67.3333796251. Note that the first 4 decimals are identical.

Adding to 305275 its reverse (572503), we get a palindrome (877778).

The spelling of 305275 in words is "three hundred five thousand, two hundred seventy-five".