30005055 has 48 divisors (see below), whose sum is σ = 54422784. Its totient is φ = 15275520.

The previous prime is 30005029. The next prime is 30005083. The reversal of 30005055 is 55050003.

It is not a de Polignac number, because 30005055 - 2⁵ = 30005023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191037 + ... + 191193.

It is an arithmetic number, because the mean of its divisors is an integer number (1133808).

Almost surely, 2^30005055 is an apocalyptic number.

30005055 is a deficient number, since it is larger than the sum of its proper divisors (24417729).

30005055 is a wasteful number, since it uses less digits than its factorization.

30005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 30005055 is about 5477.6870118692. The cubic root of 30005055 is about 310.7407019045.

Adding to 30005055 its reverse (55050003), we get a palindrome (85055058).

The spelling of 30005055 in words is "thirty million, five thousand, fifty-five".