30550502791 has 2 divisors, whose sum is σ = 30550502792. Its totient is φ = 30550502790.

The previous prime is 30550502779. The next prime is 30550502797. The reversal of 30550502791 is 19720505503.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30550502791 - 2²¹ = 30548405639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30550502791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30550502797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15275251395 + 15275251396.

It is an arithmetic number, because the mean of its divisors is an integer number (15275251396).

Almost surely, 2^30550502791 is an apocalyptic number.

30550502791 is a deficient number, since it is larger than the sum of its proper divisors (1).

30550502791 is an equidigital number, since it uses as much as digits as its factorization.

30550502791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 30550502791 in words is "thirty billion, five hundred fifty million, five hundred two thousand, seven hundred ninety-one".