2504545 has 4 divisors (see below), whose sum is σ = 3005460. Its totient is φ = 2003632.

The previous prime is 2504543. The next prime is 2504563. The reversal of 2504545 is 5454052.

2504545 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 1420864 + 1083681 = 1192^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 2504545 - 2¹ = 2504543 is a prime.

2504545 is a modest number, since divided by 4545 gives 250 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504543) 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, 250450 + ... + 250459.

It is an arithmetic number, because the mean of its divisors is an integer number (751365).

2^2504545 is an apocalyptic number.

It is an amenable number.

2504545 is a deficient number, since it is larger than the sum of its proper divisors (500915).

2504545 is an equidigital number, since it uses as much as digits as its factorization.

2504545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500914.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2504545 is about 1582.5754326414. The cubic root of 2504545 is about 135.8030778922.

Adding to 2504545 its reverse (5454052), we get a palindrome (7958597).

The spelling of 2504545 in words is "two million, five hundred four thousand, five hundred forty-five".