305305005 has 16 divisors (see below), whose sum is σ = 489109824. Its totient is φ = 162622080.

The previous prime is 305304971. The next prime is 305305043. The reversal of 305305005 is 500503503.

It is not a de Polignac number, because 305305005 - 2⁷ = 305304877 is a prime.

It is a super-2 number, since 2×305305005² = 186422292156100050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384 + ... + 24713.

It is an arithmetic number, because the mean of its divisors is an integer number (30569364).

Almost surely, 2^305305005 is an apocalyptic number.

It is an amenable number.

305305005 is a deficient number, since it is larger than the sum of its proper divisors (183804819).

305305005 is a wasteful number, since it uses less digits than its factorization.

305305005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25916.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 305305005 is about 17472.9792823090. The cubic root of 305305005 is about 673.3558558348.

Adding to 305305005 its reverse (500503503), we get a palindrome (805808508).

It can be divided in two parts, 30 and 5305005, that added together give a palindrome (5305035).

The spelling of 305305005 in words is "three hundred five million, three hundred five thousand, five".