30305550055 has 48 divisors (see below), whose sum is σ = 42221204064. Its totient is φ = 20705771520.

The previous prime is 30305550029. The next prime is 30305550073. The reversal of 30305550055 is 55005550303.

It is not a de Polignac number, because 30305550055 - 2⁹ = 30305549543 is a prime.

It is a super-2 number, since 2×30305550055² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30305549999 and 30305550026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10695919 + ... + 10698751.

It is an arithmetic number, because the mean of its divisors is an integer number (879608418).

Almost surely, 2^30305550055 is an apocalyptic number.

30305550055 is a deficient number, since it is larger than the sum of its proper divisors (11915654009).

30305550055 is a wasteful number, since it uses less digits than its factorization.

30305550055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 31.

The spelling of 30305550055 in words is "thirty billion, three hundred five million, five hundred fifty thousand, fifty-five".