30505000005 has 32 divisors (see below), whose sum is σ = 57421180800. Its totient is φ = 15312312576.

The previous prime is 30504999913. The next prime is 30505000007. The reversal of 30505000005 is 50000050503.

It is not a de Polignac number, because 30505000005 - 2⁹ = 30504999493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30505000007) 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, 6643675 + ... + 6648264.

It is an arithmetic number, because the mean of its divisors is an integer number (1794411900).

Almost surely, 2^30505000005 is an apocalyptic number.

It is an amenable number.

30505000005 is a deficient number, since it is larger than the sum of its proper divisors (26916180795).

30505000005 is a wasteful number, since it uses less digits than its factorization.

30505000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13291970 (or 13291964 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

Adding to 30505000005 its reverse (50000050503), we get a palindrome (80505050508).

The spelling of 30505000005 in words is "thirty billion, five hundred five million, five", and thus it is an aban number.