2057543 has 2 divisors, whose sum is σ = 2057544. Its totient is φ = 2057542.

The previous prime is 2057537. The next prime is 2057569. The reversal of 2057543 is 3457502.

It is an a-pointer prime, because the next prime (2057569) can be obtained adding 2057543 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057543 - 2⁶ = 2057479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028771 + 1028772.

It is an arithmetic number, because the mean of its divisors is an integer number (1028772).

2^2057543 is an apocalyptic number.

2057543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057543 is an equidigital number, since it uses as much as digits as its factorization.

2057543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2057543 is about 1434.4138175575. The cubic root of 2057543 is about 127.1890255619.

The spelling of 2057543 in words is "two million, fifty-seven thousand, five hundred forty-three".