304530053 has 2 divisors, whose sum is σ = 304530054. Its totient is φ = 304530052.

The previous prime is 304530047. The next prime is 304530077. The reversal of 304530053 is 350035403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278956804 + 25573249 = 16702^2 + 5057^2 .

It is a cyclic number.

It is not a de Polignac number, because 304530053 - 2⁶ = 304529989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304530253) 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 as a sum of consecutive naturals, namely, 152265026 + 152265027.

It is an arithmetic number, because the mean of its divisors is an integer number (152265027).

Almost surely, 2^304530053 is an apocalyptic number.

It is an amenable number.

304530053 is a deficient number, since it is larger than the sum of its proper divisors (1).

304530053 is an equidigital number, since it uses as much as digits as its factorization.

304530053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 304530053 is about 17450.7894663823. The cubic root of 304530053 is about 672.7856494392.

Adding to 304530053 its reverse (350035403), we get a palindrome (654565456).

The spelling of 304530053 in words is "three hundred four million, five hundred thirty thousand, fifty-three".