2547 has 6 divisors (see below), whose sum is σ = 3692.
Its totient is φ = 1692.
The previous prime is 2543. The next prime is 2549. The reversal of 2547 is 7452.
It is a happy number.
It is not a de Polignac number, because 2547 - 22 = 2543 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a plaindrome in base 14.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 2547.
It is not an unprimeable number, because it can be changed into a prime (2543) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133 + ... + 150.
2547 is a deficient number, since it is larger than the sum of its proper divisors (1145).
2547 is a wasteful number, since it uses less digits than its factorization.
2547 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 289 (or 286 counting only the distinct ones).
The product of its digits is 280, while the sum is 18.
The square root of 2547 is about 50.4678115238.
The cubic root of 2547 is about 13.6566123420.
Adding to 2547 its reverse (7452), we get a palindrome (9999).
The spelling of 2547 in words is "two thousand, five hundred forty-seven".