6551249 has 2 divisors, whose sum is σ = 6551250. Its totient is φ = 6551248.

The previous prime is 6551231. The next prime is 6551291. The reversal of 6551249 is 9421556.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5438224 + 1113025 = 2332^2 + 1055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6551249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6551299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275624 + 3275625.

It is an arithmetic number, because the mean of its divisors is an integer number (3275625).

Almost surely, 2^6551249 is an apocalyptic number.

It is an amenable number.

6551249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551249 is an equidigital number, since it uses as much as digits as its factorization.

6551249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 6551249 is about 2559.5407791243. The cubic root of 6551249 is about 187.1147550767.

The spelling of 6551249 in words is "six million, five hundred fifty-one thousand, two hundred forty-nine".