194223562553 has 2 divisors, whose sum is σ = 194223562554. Its totient is φ = 194223562552.

The previous prime is 194223562543. The next prime is 194223562571. The reversal of 194223562553 is 355265322491.

It is a happy number.

194223562553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154078230784 + 40145331769 = 392528^2 + 200363^2 .

It is a cyclic number.

It is not a de Polignac number, because 194223562553 - 2¹² = 194223558457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194223562498 and 194223562507.

It is not a weakly prime, because it can be changed into another prime (194223562543) 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, 97111781276 + 97111781277.

It is an arithmetic number, because the mean of its divisors is an integer number (97111781277).

Almost surely, 2^194223562553 is an apocalyptic number.

It is an amenable number.

194223562553 is a deficient number, since it is larger than the sum of its proper divisors (1).

194223562553 is an equidigital number, since it uses as much as digits as its factorization.

194223562553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 47.

The spelling of 194223562553 in words is "one hundred ninety-four billion, two hundred twenty-three million, five hundred sixty-two thousand, five hundred fifty-three".