30055021530 has 16 divisors (see below), whose sum is σ = 72132051744. Its totient is φ = 8014672400.

The previous prime is 30055021511. The next prime is 30055021547. The reversal of 30055021530 is 3512055003.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30055021530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500916996 + ... + 500917055.

It is an arithmetic number, because the mean of its divisors is an integer number (4508253234).

Almost surely, 2^30055021530 is an apocalyptic number.

30055021530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30055021530 is an abundant number, since it is smaller than the sum of its proper divisors (42077030214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30055021530 is a wasteful number, since it uses less digits than its factorization.

30055021530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001834061.

The product of its (nonzero) digits is 2250, while the sum is 24.

Adding to 30055021530 its reverse (3512055003), we get a palindrome (33567076533).

The spelling of 30055021530 in words is "thirty billion, fifty-five million, twenty-one thousand, five hundred thirty".