305340053 has 2 divisors, whose sum is σ = 305340054. Its totient is φ = 305340052.

The previous prime is 305340047. The next prime is 305340071. The reversal of 305340053 is 350043503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304921444 + 418609 = 17462^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 305340053 - 2¹⁶ = 305274517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305340023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152670026 + 152670027.

It is an arithmetic number, because the mean of its divisors is an integer number (152670027).

Almost surely, 2^305340053 is an apocalyptic number.

It is an amenable number.

305340053 is a deficient number, since it is larger than the sum of its proper divisors (1).

305340053 is an equidigital number, since it uses as much as digits as its factorization.

305340053 is an evil number, because the sum of its binary digits is even.

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

The square root of 305340053 is about 17473.9821735058. The cubic root of 305340053 is about 673.3816211871.

Adding to 305340053 its reverse (350043503), we get a palindrome (655383556).

The spelling of 305340053 in words is "three hundred five million, three hundred forty thousand, fifty-three".