6549202249 has 2 divisors, whose sum is σ = 6549202250. Its totient is φ = 6549202248.

The previous prime is 6549202237. The next prime is 6549202267. The reversal of 6549202249 is 9422029456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4417995024 + 2131207225 = 66468^2 + 46165^2 .

It is a cyclic number.

It is not a de Polignac number, because 6549202249 - 2⁵ = 6549202217 is a prime.

It is not a weakly prime, because it can be changed into another prime (6549202949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274601124 + 3274601125.

It is an arithmetic number, because the mean of its divisors is an integer number (3274601125).

Almost surely, 2^6549202249 is an apocalyptic number.

It is an amenable number.

6549202249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549202249 is an equidigital number, since it uses as much as digits as its factorization.

6549202249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 6549202249 is about 80927.1416089806. The cubic root of 6549202249 is about 1870.9526682328.

The spelling of 6549202249 in words is "six billion, five hundred forty-nine million, two hundred two thousand, two hundred forty-nine".