30553747949 has 2 divisors, whose sum is σ = 30553747950. Its totient is φ = 30553747948.

The previous prime is 30553747907. The next prime is 30553748033. The reversal of 30553747949 is 94974735503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30316033225 + 237714724 = 174115^2 + 15418^2 .

It is an emirp because it is prime and its reverse (94974735503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30553747949 - 2²⁸ = 30285312493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30553747894 and 30553747903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30553749949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276873974 + 15276873975.

It is an arithmetic number, because the mean of its divisors is an integer number (15276873975).

Almost surely, 2^30553747949 is an apocalyptic number.

It is an amenable number.

30553747949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30553747949 is an equidigital number, since it uses as much as digits as its factorization.

30553747949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14288400, while the sum is 56.

The spelling of 30553747949 in words is "thirty billion, five hundred fifty-three million, seven hundred forty-seven thousand, nine hundred forty-nine".