499955249 has 2 divisors, whose sum is σ = 499955250. Its totient is φ = 499955248.

The previous prime is 499955243. The next prime is 499955251. The reversal of 499955249 is 942559994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331786225 + 168169024 = 18215^2 + 12968^2 .

It is a cyclic number.

It is not a de Polignac number, because 499955249 - 2⁸ = 499954993 is a prime.

Together with 499955251, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 499955194 and 499955203.

It is not a weakly prime, because it can be changed into another prime (499955243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249977624 + 249977625.

It is an arithmetic number, because the mean of its divisors is an integer number (249977625).

Almost surely, 2^499955249 is an apocalyptic number.

It is an amenable number.

499955249 is a deficient number, since it is larger than the sum of its proper divisors (1).

499955249 is an equidigital number, since it uses as much as digits as its factorization.

499955249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 56.

The square root of 499955249 is about 22359.6790898260. The cubic root of 499955249 is about 793.6768460161.

The spelling of 499955249 in words is "four hundred ninety-nine million, nine hundred fifty-five thousand, two hundred forty-nine".