2551244 has 12 divisors (see below), whose sum is σ = 4699800. Its totient is φ = 1208448.

The previous prime is 2551223. The next prime is 2551247. The reversal of 2551244 is 4421552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2551247) 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, 16709 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (391650).

2^2551244 is an apocalyptic number.

It is an amenable number.

2551244 is a deficient number, since it is larger than the sum of its proper divisors (2148556).

2551244 is a wasteful number, since it uses less digits than its factorization.

2551244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33592 (or 33590 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 2551244 is about 1597.2614062826. The cubic root of 2551244 is about 136.6419335241.

Adding to 2551244 its reverse (4421552), we get a palindrome (6972796).

The spelling of 2551244 in words is "two million, five hundred fifty-one thousand, two hundred forty-four".