2551347 has 12 divisors (see below), whose sum is σ = 3706560. Its totient is φ = 1691088.

The previous prime is 2551313. The next prime is 2551349. The reversal of 2551347 is 7431552.

It is a happy number.

It is not a de Polignac number, because 2551347 - 2¹¹ = 2549299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2551347.

It is not an unprimeable number, because it can be changed into a prime (2551349) 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 11 ways as a sum of consecutive naturals, for example, 1054 + ... + 2492.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

2^2551347 is an apocalyptic number.

2551347 is a deficient number, since it is larger than the sum of its proper divisors (1155213).

2551347 is a wasteful number, since it uses less digits than its factorization.

2551347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642 (or 1639 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 2551347 is about 1597.2936486445. The cubic root of 2551347 is about 136.6437723564.

Adding to 2551347 its reverse (7431552), we get a palindrome (9982899).

The spelling of 2551347 in words is "two million, five hundred fifty-one thousand, three hundred forty-seven".