355250305521361 has 2 divisors, whose sum is σ = 355250305521362. Its totient is φ = 355250305521360.

The previous prime is 355250305521359. The next prime is 355250305521427. The reversal of 355250305521361 is 163125503052553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230203542451600 + 125046763069761 = 15172460^2 + 11182431^2 .

It is an emirp because it is prime and its reverse (163125503052553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355250305521361 - 2¹ = 355250305521359 is a prime.

Together with 355250305521359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (355250305521301) 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, 177625152760680 + 177625152760681.

It is an arithmetic number, because the mean of its divisors is an integer number (177625152760681).

Almost surely, 2^{355250305521361} is an apocalyptic number.

It is an amenable number.

355250305521361 is a deficient number, since it is larger than the sum of its proper divisors (1).

355250305521361 is an equidigital number, since it uses as much as digits as its factorization.

355250305521361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025000, while the sum is 46.

The spelling of 355250305521361 in words is "three hundred fifty-five trillion, two hundred fifty billion, three hundred five million, five hundred twenty-one thousand, three hundred sixty-one".