2551349 has 2 divisors, whose sum is σ = 2551350. Its totient is φ = 2551348.

The previous prime is 2551313. The next prime is 2551357. The reversal of 2551349 is 9431552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1380625 + 1170724 = 1175^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551349 - 2¹² = 2547253 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 5 + 5⁹ + 1 + 3¹² + 4⁸ + 9³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275674 + 1275675.

It is an arithmetic number, because the mean of its divisors is an integer number (1275675).

2^2551349 is an apocalyptic number.

It is an amenable number.

2551349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551349 is an equidigital number, since it uses as much as digits as its factorization.

2551349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 2551349 is about 1597.2942747033. The cubic root of 2551349 is about 136.6438080614.

The spelling of 2551349 in words is "two million, five hundred fifty-one thousand, three hundred forty-nine".