30481825357 has 2 divisors, whose sum is σ = 30481825358. Its totient is φ = 30481825356.

The previous prime is 30481825307. The next prime is 30481825369. The reversal of 30481825357 is 75352818403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30406291876 + 75533481 = 174374^2 + 8691^2 .

It is an emirp because it is prime and its reverse (75352818403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30481825357 - 2¹⁵ = 30481792589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30481825307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15240912678 + 15240912679.

It is an arithmetic number, because the mean of its divisors is an integer number (15240912679).

Almost surely, 2^30481825357 is an apocalyptic number.

It is an amenable number.

30481825357 is a deficient number, since it is larger than the sum of its proper divisors (1).

30481825357 is an equidigital number, since it uses as much as digits as its factorization.

30481825357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 30481825357 in words is "thirty billion, four hundred eighty-one million, eight hundred twenty-five thousand, three hundred fifty-seven".