2000543557 has 2 divisors, whose sum is σ = 2000543558. Its totient is φ = 2000543556.

The previous prime is 2000543507. The next prime is 2000543563. The reversal of 2000543557 is 7553450002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1834494561 + 166048996 = 42831^2 + 12886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000543557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000543507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000271778 + 1000271779.

It is an arithmetic number, because the mean of its divisors is an integer number (1000271779).

Almost surely, 2^2000543557 is an apocalyptic number.

It is an amenable number.

2000543557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000543557 is an equidigital number, since it uses as much as digits as its factorization.

2000543557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 2000543557 is about 44727.4362891503. The cubic root of 2000543557 is about 1260.0351793739.

Adding to 2000543557 its reverse (7553450002), we get a palindrome (9553993559).

The spelling of 2000543557 in words is "two billion, five hundred forty-three thousand, five hundred fifty-seven".