30052421521 has 8 divisors (see below), whose sum is σ = 30438101120. Its totient is φ = 29666873808.

The previous prime is 30052421453. The next prime is 30052421537. The reversal of 30052421521 is 12512425003.

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 30052421521 - 2¹⁵ = 30052388753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30052421561) 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, 475630 + ... + 535096.

It is an arithmetic number, because the mean of its divisors is an integer number (3804762640).

Almost surely, 2^30052421521 is an apocalyptic number.

It is an amenable number.

30052421521 is a deficient number, since it is larger than the sum of its proper divisors (385679599).

30052421521 is an equidigital number, since it uses as much as digits as its factorization.

30052421521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65943.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 30052421521 its reverse (12512425003), we get a palindrome (42564846524).

The spelling of 30052421521 in words is "thirty billion, fifty-two million, four hundred twenty-one thousand, five hundred twenty-one".