2558249 has 2 divisors, whose sum is σ = 2558250. Its totient is φ = 2558248.

The previous prime is 2558243. The next prime is 2558251. The reversal of 2558249 is 9428552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2155024 + 403225 = 1468^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558249 - 2⁴ = 2558233 is a prime.

Together with 2558251, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2558243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279124 + 1279125.

It is an arithmetic number, because the mean of its divisors is an integer number (1279125).

2^2558249 is an apocalyptic number.

It is an amenable number.

2558249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558249 is an equidigital number, since it uses as much as digits as its factorization.

2558249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 2558249 is about 1599.4527189011. The cubic root of 2558249 is about 136.7668793717.

The spelling of 2558249 in words is "two million, five hundred fifty-eight thousand, two hundred forty-nine".