2549289 has 4 divisors (see below), whose sum is σ = 3399056. Its totient is φ = 1699524.

The previous prime is 2549279. The next prime is 2549291. The reversal of 2549289 is 9829452.

2549289 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2549289 - 2¹⁶ = 2483753 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2549219) 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, 424879 + ... + 424884.

It is an arithmetic number, because the mean of its divisors is an integer number (849764).

2^2549289 is an apocalyptic number.

It is an amenable number.

2549289 is a deficient number, since it is larger than the sum of its proper divisors (849767).

2549289 is an equidigital number, since it uses as much as digits as its factorization.

2549289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849766.

The product of its digits is 51840, while the sum is 39.

The square root of 2549289 is about 1596.6493040114. The cubic root of 2549289 is about 136.6070220268.

The spelling of 2549289 in words is "two million, five hundred forty-nine thousand, two hundred eighty-nine".