305055013 has 4 divisors (see below), whose sum is σ = 321110560. Its totient is φ = 288999468.

The previous prime is 305055011. The next prime is 305055019. The reversal of 305055013 is 310550503.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310550503 = 251 ⋅1237253.

It is a cyclic number.

It is not a de Polignac number, because 305055013 - 2¹ = 305055011 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 (305055011) by changing a digit.

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, 8027745 + ... + 8027782.

It is an arithmetic number, because the mean of its divisors is an integer number (80277640).

Almost surely, 2^305055013 is an apocalyptic number.

It is an amenable number.

305055013 is a deficient number, since it is larger than the sum of its proper divisors (16055547).

305055013 is a wasteful number, since it uses less digits than its factorization.

305055013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16055546.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 305055013 is about 17465.8241431660. The cubic root of 305055013 is about 673.1720183164.

The spelling of 305055013 in words is "three hundred five million, fifty-five thousand, thirteen".