30052005 has 16 divisors (see below), whose sum is σ = 50912064. Its totient is φ = 15084800.

The previous prime is 30051997. The next prime is 30052021. The reversal of 30052005 is 50025003.

It is not a de Polignac number, because 30052005 - 2³ = 30051997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 58671 + ... + 59180.

It is an arithmetic number, because the mean of its divisors is an integer number (3182004).

Almost surely, 2^30052005 is an apocalyptic number.

It is an amenable number.

30052005 is a deficient number, since it is larger than the sum of its proper divisors (20860059).

30052005 is a wasteful number, since it uses less digits than its factorization.

30052005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117876.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 30052005 is about 5481.9709047021. The cubic root of 30052005 is about 310.9026931990.

Adding to 30052005 its reverse (50025003), we get a palindrome (80077008).

The spelling of 30052005 in words is "thirty million, fifty-two thousand, five".