305305053 has 32 divisors (see below), whose sum is σ = 437606400. Its totient is φ = 188770176.

The previous prime is 305305051. The next prime is 305305067. The reversal of 305305053 is 350503503.

It is not a de Polignac number, because 305305053 - 2¹ = 305305051 is a prime.

It is a super-2 number, since 2×305305053² = 186422350774665618, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305305051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994326 + ... + 994632.

It is an arithmetic number, because the mean of its divisors is an integer number (13675200).

Almost surely, 2^305305053 is an apocalyptic number.

It is an amenable number.

305305053 is a deficient number, since it is larger than the sum of its proper divisors (132301347).

305305053 is a wasteful number, since it uses less digits than its factorization.

305305053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 3375, while the sum is 24.

The square root of 305305053 is about 17472.9806558583. The cubic root of 305305053 is about 673.3558911231.

Adding to 305305053 its reverse (350503503), we get a palindrome (655808556).

The spelling of 305305053 in words is "three hundred five million, three hundred five thousand, fifty-three".