305063 has 4 divisors (see below), whose sum is σ = 332808. Its totient is φ = 277320.

The previous prime is 305047. The next prime is 305069. The reversal of 305063 is 360503.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 305063 - 2⁴ = 305047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13856 + ... + 13877.

It is an arithmetic number, because the mean of its divisors is an integer number (83202).

2³⁰⁵⁰⁶³ is an apocalyptic number.

305063 is a deficient number, since it is larger than the sum of its proper divisors (27745).

305063 is a wasteful number, since it uses less digits than its factorization.

305063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27744.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 305063 is about 552.3250854343. The cubic root of 305063 is about 67.3177893298.

Adding to 305063 its reverse (360503), we get a palindrome (665566).

It can be divided in two parts, 3050 and 63, that added together give a palindrome (3113).

The spelling of 305063 in words is "three hundred five thousand, sixty-three".