30205055 has 8 divisors (see below), whose sum is σ = 36285792. Its totient is φ = 24137568.

The previous prime is 30205051. The next prime is 30205081. The reversal of 30205055 is 55050203.

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 30205055 - 2² = 30205051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2702 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (4535724).

Almost surely, 2^30205055 is an apocalyptic number.

30205055 is a deficient number, since it is larger than the sum of its proper divisors (6080737).

30205055 is a wasteful number, since it uses less digits than its factorization.

30205055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625.

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

The square root of 30205055 is about 5495.9125720848. The cubic root of 30205055 is about 311.4295921125.

Adding to 30205055 its reverse (55050203), we get a palindrome (85255258).

The spelling of 30205055 in words is "thirty million, two hundred five thousand, fifty-five".