30530055550 has 24 divisors (see below), whose sum is σ = 57994118496. Its totient is φ = 11952191040.

The previous prime is 30530055533. The next prime is 30530055559. The reversal of 30530055550 is 5555003503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530055559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6493407 + ... + 6498106.

It is an arithmetic number, because the mean of its divisors is an integer number (2416421604).

Almost surely, 2^30530055550 is an apocalyptic number.

30530055550 is a deficient number, since it is larger than the sum of its proper divisors (27464062946).

30530055550 is a wasteful number, since it uses less digits than its factorization.

30530055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12991572 (or 12991567 counting only the distinct ones).

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

The spelling of 30530055550 in words is "thirty billion, five hundred thirty million, fifty-five thousand, five hundred fifty".