305253313 has 4 divisors (see below), whose sum is σ = 307449520. Its totient is φ = 303057108.

The previous prime is 305253307. The next prime is 305253329. The reversal of 305253313 is 313352503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 305253313 - 2¹⁷ = 305122241 is a prime.

It is the 17472-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305253383) by changing a digit.

It is a nontrivial repunit in base 17471.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097895 + ... + 1098172.

It is an arithmetic number, because the mean of its divisors is an integer number (76862380).

Almost surely, 2^305253313 is an apocalyptic number.

It is an amenable number.

305253313 is a deficient number, since it is larger than the sum of its proper divisors (2196207).

305253313 is a wasteful number, since it uses less digits than its factorization.

305253313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196206.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 305253313 is about 17471.5000214635. The cubic root of 305253313 is about 673.3178511346.

It can be divided in two parts, 3052 and 53313, that added together give a palindrome (56365).

The spelling of 305253313 in words is "three hundred five million, two hundred fifty-three thousand, three hundred thirteen".