30055205 has 8 divisors (see below), whose sum is σ = 36143232. Its totient is φ = 23992848.

The previous prime is 30055147. The next prime is 30055217. The reversal of 30055205 is 50255003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30055205 - 2¹⁴ = 30038821 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 3737 + ... + 8606.

It is an arithmetic number, because the mean of its divisors is an integer number (4517904).

Almost surely, 2^30055205 is an apocalyptic number.

It is an amenable number.

30055205 is a deficient number, since it is larger than the sum of its proper divisors (6088027).

30055205 is a wasteful number, since it uses less digits than its factorization.

30055205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30055205 is about 5482.2627627650. The cubic root of 30055205 is about 310.9137279958.

The spelling of 30055205 in words is "thirty million, fifty-five thousand, two hundred five".