2544549 has 8 divisors (see below), whose sum is σ = 3877440. Its totient is φ = 1454016.

The previous prime is 2544539. The next prime is 2544571. The reversal of 2544549 is 9454452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2544549 - 2⁵ = 2544517 is a prime.

It is a super-2 number, since 2×2544549² = 12949459226802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60564 + ... + 60605.

It is an arithmetic number, because the mean of its divisors is an integer number (484680).

2^2544549 is an apocalyptic number.

It is an amenable number.

2544549 is a deficient number, since it is larger than the sum of its proper divisors (1332891).

2544549 is a wasteful number, since it uses less digits than its factorization.

2544549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121179.

The product of its digits is 28800, while the sum is 33.

The square root of 2544549 is about 1595.1642548653. The cubic root of 2544549 is about 136.5223031087.

Subtracting 2544549 from its reverse (9454452), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2544549 in words is "two million, five hundred forty-four thousand, five hundred forty-nine".