30505500305 has 16 divisors (see below), whose sum is σ = 41841218304. Its totient is φ = 20915505600.

The previous prime is 30505500301. The next prime is 30505500317. The reversal of 30505500305 is 50300550503.

It is not a de Polignac number, because 30505500305 - 2² = 30505500301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30505500301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264599 + ... + 361971.

It is an arithmetic number, because the mean of its divisors is an integer number (2615076144).

Almost surely, 2^30505500305 is an apocalyptic number.

30505500305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30505500305 is a deficient number, since it is larger than the sum of its proper divisors (11335717999).

30505500305 is an equidigital number, since it uses as much as digits as its factorization.

30505500305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106336.

The product of its (nonzero) digits is 5625, while the sum is 26.

The spelling of 30505500305 in words is "thirty billion, five hundred five million, five hundred thousand, three hundred five".