543994049 has 2 divisors, whose sum is σ = 543994050. Its totient is φ = 543994048.

The previous prime is 543994037. The next prime is 543994103. The reversal of 543994049 is 940499345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378691600 + 165302449 = 19460^2 + 12857^2 .

It is a cyclic number.

It is not a de Polignac number, because 543994049 - 2¹⁶ = 543928513 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 543993994 and 543994012.

It is not a weakly prime, because it can be changed into another prime (543994019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271997024 + 271997025.

It is an arithmetic number, because the mean of its divisors is an integer number (271997025).

Almost surely, 2^543994049 is an apocalyptic number.

It is an amenable number.

543994049 is a deficient number, since it is larger than the sum of its proper divisors (1).

543994049 is an equidigital number, since it uses as much as digits as its factorization.

543994049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 543994049 is about 23323.6800055223. The cubic root of 543994049 is about 816.3280436656.

The spelling of 543994049 in words is "five hundred forty-three million, nine hundred ninety-four thousand, forty-nine".