30530015 has 4 divisors (see below), whose sum is σ = 36636024. Its totient is φ = 24424008.

The previous prime is 30529999. The next prime is 30530021. The reversal of 30530015 is 51003503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30530015 - 2⁴ = 30529999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30529975 and 30530002.

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 3 ways as a sum of consecutive naturals, for example, 3052997 + ... + 3053006.

It is an arithmetic number, because the mean of its divisors is an integer number (9159006).

Almost surely, 2^30530015 is an apocalyptic number.

30530015 is a deficient number, since it is larger than the sum of its proper divisors (6106009).

30530015 is an equidigital number, since it uses as much as digits as its factorization.

30530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106008.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 30530015 is about 5525.3972707852. The cubic root of 30530015 is about 312.5424454346.

Adding to 30530015 its reverse (51003503), we get a palindrome (81533518).

The spelling of 30530015 in words is "thirty million, five hundred thirty thousand, fifteen".