2544533 has 4 divisors (see below), whose sum is σ = 2598720. Its totient is φ = 2490348.

The previous prime is 2544523. The next prime is 2544539. The reversal of 2544533 is 3354452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2544533 - 2⁴ = 2544517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27023 + ... + 27116.

It is an arithmetic number, because the mean of its divisors is an integer number (649680).

2^2544533 is an apocalyptic number.

It is an amenable number.

2544533 is a deficient number, since it is larger than the sum of its proper divisors (54187).

2544533 is an equidigital number, since it uses as much as digits as its factorization.

2544533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54186.

The product of its digits is 7200, while the sum is 26.

The square root of 2544533 is about 1595.1592396999. The cubic root of 2544533 is about 136.5220169596.

Adding to 2544533 its reverse (3354452), we get a palindrome (5898985).

The spelling of 2544533 in words is "two million, five hundred forty-four thousand, five hundred thirty-three".