2533543 has 4 divisors (see below), whose sum is σ = 2559760. Its totient is φ = 2507328.

The previous prime is 2533507. The next prime is 2533549. The reversal of 2533543 is 3453352.

It is a happy number.

2533543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2533543 - 2⁹ = 2533031 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 5² + 3⁶ + 3¹² + 5⁸ + 4² + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533549) 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 in 3 ways as a sum of consecutive naturals, for example, 12963 + ... + 13156.

It is an arithmetic number, because the mean of its divisors is an integer number (639940).

2^2533543 is an apocalyptic number.

2533543 is a deficient number, since it is larger than the sum of its proper divisors (26217).

2533543 is an equidigital number, since it uses as much as digits as its factorization.

2533543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26216.

The product of its digits is 5400, while the sum is 25.

The square root of 2533543 is about 1591.7107149228. The cubic root of 2533543 is about 136.3251842154.

Adding to 2533543 its reverse (3453352), we get a palindrome (5986895).

The spelling of 2533543 in words is "two million, five hundred thirty-three thousand, five hundred forty-three".