2549489 has 4 divisors (see below), whose sum is σ = 2573424. Its totient is φ = 2525556.

The previous prime is 2549479. The next prime is 2549531. The reversal of 2549489 is 9849452.

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 2549489 - 2¹⁶ = 2483953 is a prime.

It is a super-2 number, since 2×2549489² = 12999788322242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2549429) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11807 + ... + 12020.

It is an arithmetic number, because the mean of its divisors is an integer number (643356).

2^2549489 is an apocalyptic number.

It is an amenable number.

2549489 is a deficient number, since it is larger than the sum of its proper divisors (23935).

2549489 is a wasteful number, since it uses less digits than its factorization.

2549489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23934.

The product of its digits is 103680, while the sum is 41.

The square root of 2549489 is about 1596.7119339443. The cubic root of 2549489 is about 136.6105943549.

The spelling of 2549489 in words is "two million, five hundred forty-nine thousand, four hundred eighty-nine".