30005280505305 has 24 divisors (see below), whose sum is σ = 59439031858752. Its totient is φ = 13716699659424.

The previous prime is 30005280505273. The next prime is 30005280505331. The reversal of 30005280505305 is 50350508250003.

30005280505305 is a `hidden beast` number, since 30 + 0 + 0 + 528 + 0 + 50 + 53 + 0 + 5 = 666.

It is not a de Polignac number, because 30005280505305 - 2⁵ = 30005280505273 is a prime.

It is a super-2 number, since 2×30005280505305² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30005280505305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47627429059 + ... + 47627429688.

It is an arithmetic number, because the mean of its divisors is an integer number (2476626327448).

Almost surely, 2^{30005280505305} is an apocalyptic number.

30005280505305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30005280505305 is a deficient number, since it is larger than the sum of its proper divisors (29433751353447).

30005280505305 is a wasteful number, since it uses less digits than its factorization.

30005280505305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95254858765 (or 95254858762 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 30005280505305 its reverse (50350508250003), we get a palindrome (80355788755308).

The spelling of 30005280505305 in words is "thirty trillion, five billion, two hundred eighty million, five hundred five thousand, three hundred five".