2551316 has 6 divisors (see below), whose sum is σ = 4464810. Its totient is φ = 1275656.

The previous prime is 2551313. The next prime is 2551349. The reversal of 2551316 is 6131552.

2551316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1811716 + 739600 = 1346^2 + 860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2551291 and 2551300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318911 + ... + 318918.

It is an arithmetic number, because the mean of its divisors is an integer number (744135).

2^2551316 is an apocalyptic number.

It is an amenable number.

2551316 is a deficient number, since it is larger than the sum of its proper divisors (1913494).

2551316 is a wasteful number, since it uses less digits than its factorization.

2551316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637833 (or 637831 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 2551316 is about 1597.2839447011. The cubic root of 2551316 is about 136.6432189266.

Adding to 2551316 its reverse (6131552), we get a palindrome (8682868).

The spelling of 2551316 in words is "two million, five hundred fifty-one thousand, three hundred sixteen".