30000550 has 12 divisors (see below), whose sum is σ = 55801116. Its totient is φ = 12000200.

The previous prime is 30000521. The next prime is 30000571. The reversal of 30000550 is 5500003.

It is a self number, because there is not a number n which added to its sum of digits gives 30000550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 299956 + ... + 300055.

It is an arithmetic number, because the mean of its divisors is an integer number (4650093).

Almost surely, 2^30000550 is an apocalyptic number.

30000550 is a deficient number, since it is larger than the sum of its proper divisors (25800566).

30000550 is a wasteful number, since it uses less digits than its factorization.

30000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600023 (or 600018 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 30000550 is about 5477.2757827226. The cubic root of 30000550 is about 310.7251494481.

Adding to 30000550 its reverse (5500003), we get a palindrome (35500553).

The spelling of 30000550 in words is "thirty million, five hundred fifty", and thus it is an aban number.