30250221709 has 2 divisors, whose sum is σ = 30250221710. Its totient is φ = 30250221708.

The previous prime is 30250221691. The next prime is 30250221761. The reversal of 30250221709 is 90712205203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28046200900 + 2204020809 = 167470^2 + 46947^2 .

It is a cyclic number.

It is not a de Polignac number, because 30250221709 - 2¹¹ = 30250219661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30250221779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125110854 + 15125110855.

It is an arithmetic number, because the mean of its divisors is an integer number (15125110855).

Almost surely, 2^30250221709 is an apocalyptic number.

It is an amenable number.

30250221709 is a deficient number, since it is larger than the sum of its proper divisors (1).

30250221709 is an equidigital number, since it uses as much as digits as its factorization.

30250221709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 30250221709 in words is "thirty billion, two hundred fifty million, two hundred twenty-one thousand, seven hundred nine".