30005275049 has 4 divisors (see below), whose sum is σ = 30070932564. Its totient is φ = 29939617536.

The previous prime is 30005275039. The next prime is 30005275063. The reversal of 30005275049 is 94057250003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11420769424 + 18584505625 = 106868^2 + 136325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30005275049 is a prime.

It is a super-2 number, since 2×30005275049² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30005275039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32828072 + ... + 32828985.

It is an arithmetic number, because the mean of its divisors is an integer number (7517733141).

Almost surely, 2^30005275049 is an apocalyptic number.

It is an amenable number.

30005275049 is a deficient number, since it is larger than the sum of its proper divisors (65657515).

30005275049 is an equidigital number, since it uses as much as digits as its factorization.

30005275049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65657514.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 30005275049 in words is "thirty billion, five million, two hundred seventy-five thousand, forty-nine".