2544506 has 4 divisors (see below), whose sum is σ = 3816762. Its totient is φ = 1272252.

The previous prime is 2544497. The next prime is 2544517. The reversal of 2544506 is 6054452.

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

It can be written as a sum of positive squares in only one way, i.e., 2531281 + 13225 = 1591^2 + 115^2 .

It is a d-powerful number, because it can be written as 2¹⁹ + 5 + 4⁴ + 4⁸ + 5⁹ + 0 + 6⁴ .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636125 + ... + 636128.

2^2544506 is an apocalyptic number.

2544506 is a deficient number, since it is larger than the sum of its proper divisors (1272256).

2544506 is a wasteful number, since it uses less digits than its factorization.

2544506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272255.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2544506 is about 1595.1507765725. The cubic root of 2544506 is about 136.5215340802.

Adding to 2544506 its reverse (6054452), we get a palindrome (8598958).

The spelling of 2544506 in words is "two million, five hundred forty-four thousand, five hundred six".