2543573 has 2 divisors, whose sum is σ = 2543574. Its totient is φ = 2543572.

The previous prime is 2543551. The next prime is 2543609. The reversal of 2543573 is 3753452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 56644 = 1577^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543573 - 2⁶ = 2543509 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 4⁹ + 3⁸ + 5⁷ + 7 + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271786 + 1271787.

It is an arithmetic number, because the mean of its divisors is an integer number (1271787).

2^2543573 is an apocalyptic number.

It is an amenable number.

2543573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543573 is an equidigital number, since it uses as much as digits as its factorization.

2543573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 29.

The square root of 2543573 is about 1594.8583009158. The cubic root of 2543573 is about 136.5048458163.

The spelling of 2543573 in words is "two million, five hundred forty-three thousand, five hundred seventy-three".