2500543 has 2 divisors, whose sum is σ = 2500544. Its totient is φ = 2500542.

The previous prime is 2500529. The next prime is 2500559. The reversal of 2500543 is 3450052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2500543 - 2²¹ = 403391 is a prime.

2500543 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2500543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250271 + 1250272.

It is an arithmetic number, because the mean of its divisors is an integer number (1250272).

2^2500543 is an apocalyptic number.

2500543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500543 is an equidigital number, since it uses as much as digits as its factorization.

2500543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 2500543 is about 1581.3105324382. The cubic root of 2500543 is about 135.7307063102.

Adding to 2500543 its reverse (3450052), we get a palindrome (5950595).

The spelling of 2500543 in words is "two million, five hundred thousand, five hundred forty-three".