30955205 has 16 divisors (see below), whose sum is σ = 39287808. Its totient is φ = 23376000.

The previous prime is 30955189. The next prime is 30955213. The reversal of 30955205 is 50255903.

It is not a de Polignac number, because 30955205 - 2⁴ = 30955189 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 15 ways as a sum of consecutive naturals, for example, 3920 + ... + 8790.

It is an arithmetic number, because the mean of its divisors is an integer number (2455488).

Almost surely, 2^30955205 is an apocalyptic number.

It is an amenable number.

30955205 is a deficient number, since it is larger than the sum of its proper divisors (8332603).

30955205 is a wasteful number, since it uses less digits than its factorization.

30955205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 30955205 is about 5563.7401988231. The cubic root of 30955205 is about 313.9866824649.

The spelling of 30955205 in words is "thirty million, nine hundred fifty-five thousand, two hundred five".