5249009 has 2 divisors, whose sum is σ = 5249010. Its totient is φ = 5249008.

The previous prime is 5248987. The next prime is 5249011. The reversal of 5249009 is 9009425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5161984 + 87025 = 2272^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 5249009 - 2¹² = 5244913 is a prime.

Together with 5249011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5246009) 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, 2624504 + 2624505.

It is an arithmetic number, because the mean of its divisors is an integer number (2624505).

Almost surely, 2^5249009 is an apocalyptic number.

It is an amenable number.

5249009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5249009 is an equidigital number, since it uses as much as digits as its factorization.

5249009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 5249009 is about 2291.0715833426. The cubic root of 5249009 is about 173.7903958660.

The spelling of 5249009 in words is "five million, two hundred forty-nine thousand, nine".