2544205 has 4 divisors (see below), whose sum is σ = 3053052. Its totient is φ = 2035360.

The previous prime is 2544187. The next prime is 2544209. The reversal of 2544205 is 5024452.

2544205 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 can be written as a sum of positive squares in 2 ways, for example, as 1671849 + 872356 = 1293^2 + 934^2 .

It is not a de Polignac number, because 2544205 - 2¹³ = 2536013 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 (2544209) 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, 254416 + ... + 254425.

It is an arithmetic number, because the mean of its divisors is an integer number (763263).

2^2544205 is an apocalyptic number.

It is an amenable number.

2544205 is a deficient number, since it is larger than the sum of its proper divisors (508847).

2544205 is an equidigital number, since it uses as much as digits as its factorization.

2544205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508846.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2544205 is about 1595.0564253342. The cubic root of 2544205 is about 136.5161506381.

Adding to 2544205 its reverse (5024452), we get a palindrome (7568657).

The spelling of 2544205 in words is "two million, five hundred forty-four thousand, two hundred five".