355404055493 has 2 divisors, whose sum is σ = 355404055494. Its totient is φ = 355404055492.

The previous prime is 355404055439. The next prime is 355404055537. The reversal of 355404055493 is 394550404553.

Together with previous prime (355404055439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335916453889 + 19487601604 = 579583^2 + 139598^2 .

It is an emirp because it is prime and its reverse (394550404553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355404055493 - 2⁶ = 355404055429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355404055093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177702027746 + 177702027747.

It is an arithmetic number, because the mean of its divisors is an integer number (177702027747).

Almost surely, 2^355404055493 is an apocalyptic number.

It is an amenable number.

355404055493 is a deficient number, since it is larger than the sum of its proper divisors (1).

355404055493 is an equidigital number, since it uses as much as digits as its factorization.

355404055493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 355404055493 in words is "three hundred fifty-five billion, four hundred four million, fifty-five thousand, four hundred ninety-three".