30250321 has 2 divisors, whose sum is σ = 30250322. Its totient is φ = 30250320.

The previous prime is 30250309. The next prime is 30250351. The reversal of 30250321 is 12305203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 4999696 = 5025^2 + 2236^2 .

It is a cyclic number.

It is not a de Polignac number, because 30250321 - 2¹⁷ = 30119249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30250295 and 30250304.

It is not a weakly prime, because it can be changed into another prime (30250301) by changing a digit.

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 as a sum of consecutive naturals, namely, 15125160 + 15125161.

It is an arithmetic number, because the mean of its divisors is an integer number (15125161).

Almost surely, 2^30250321 is an apocalyptic number.

It is an amenable number.

30250321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30250321 is an equidigital number, since it uses as much as digits as its factorization.

30250321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30250321 is about 5500.0291817408. The cubic root of 30250321 is about 311.5850863464.

Adding to 30250321 its reverse (12305203), we get a palindrome (42555524).

The spelling of 30250321 in words is "thirty million, two hundred fifty thousand, three hundred twenty-one".