53200668349 has 2 divisors, whose sum is σ = 53200668350. Its totient is φ = 53200668348.

The previous prime is 53200668347. The next prime is 53200668361. The reversal of 53200668349 is 94386600235.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49480888249 + 3719780100 = 222443^2 + 60990^2 .

It is a cyclic number.

It is not a de Polignac number, because 53200668349 - 2¹ = 53200668347 is a prime.

It is a super-2 number, since 2×53200668349² (a number of 22 digits) contains 22 as substring.

Together with 53200668347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 53200668299 and 53200668308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53200668347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26600334174 + 26600334175.

It is an arithmetic number, because the mean of its divisors is an integer number (26600334175).

Almost surely, 2^53200668349 is an apocalyptic number.

It is an amenable number.

53200668349 is a deficient number, since it is larger than the sum of its proper divisors (1).

53200668349 is an equidigital number, since it uses as much as digits as its factorization.

53200668349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 53200668349 in words is "fifty-three billion, two hundred million, six hundred sixty-eight thousand, three hundred forty-nine".