202554404189 has 2 divisors, whose sum is σ = 202554404190. Its totient is φ = 202554404188.

The previous prime is 202554404093. The next prime is 202554404191. The reversal of 202554404189 is 981404455202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104162398564 + 98392005625 = 322742^2 + 313675^2 .

It is a cyclic number.

It is not a de Polignac number, because 202554404189 - 2¹⁶ = 202554338653 is a prime.

Together with 202554404191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202554454189) 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, 101277202094 + 101277202095.

It is an arithmetic number, because the mean of its divisors is an integer number (101277202095).

Almost surely, 2^202554404189 is an apocalyptic number.

It is an amenable number.

202554404189 is a deficient number, since it is larger than the sum of its proper divisors (1).

202554404189 is an equidigital number, since it uses as much as digits as its factorization.

202554404189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 202554404189 in words is "two hundred two billion, five hundred fifty-four million, four hundred four thousand, one hundred eighty-nine".