249956449 has 2 divisors, whose sum is σ = 249956450. Its totient is φ = 249956448.

The previous prime is 249956437. The next prime is 249956461. The reversal of 249956449 is 944659942.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (249956437) and next prime (249956461).

It can be written as a sum of positive squares in only one way, i.e., 232257600 + 17698849 = 15240^2 + 4207^2 .

It is a cyclic number.

It is not a de Polignac number, because 249956449 - 2¹¹ = 249954401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249956396 and 249956405.

It is not a weakly prime, because it can be changed into another prime (249956429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124978224 + 124978225.

It is an arithmetic number, because the mean of its divisors is an integer number (124978225).

Almost surely, 2^249956449 is an apocalyptic number.

It is an amenable number.

249956449 is a deficient number, since it is larger than the sum of its proper divisors (1).

249956449 is an equidigital number, since it uses as much as digits as its factorization.

249956449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The square root of 249956449 is about 15810.0110373143. The cubic root of 249956449 is about 629.9239422753.

The spelling of 249956449 in words is "two hundred forty-nine million, nine hundred fifty-six thousand, four hundred forty-nine".