2552549 has 4 divisors (see below), whose sum is σ = 2562240. Its totient is φ = 2542860.

The previous prime is 2552531. The next prime is 2552581. The reversal of 2552549 is 9452552.

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 2552549 - 2⁸ = 2552293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552449) 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, 4439 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (640560).

2^2552549 is an apocalyptic number.

It is an amenable number.

2552549 is a deficient number, since it is larger than the sum of its proper divisors (9691).

2552549 is an equidigital number, since it uses as much as digits as its factorization.

2552549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690.

The product of its digits is 18000, while the sum is 32.

The square root of 2552549 is about 1597.6698657733. The cubic root of 2552549 is about 136.6652276932.

The spelling of 2552549 in words is "two million, five hundred fifty-two thousand, five hundred forty-nine".