63911249 has 2 divisors, whose sum is σ = 63911250. Its totient is φ = 63911248.

The previous prime is 63911213. The next prime is 63911257. The reversal of 63911249 is 94211936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 7059649 = 7540^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 63911249 - 2¹² = 63907153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63911209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31955624 + 31955625.

It is an arithmetic number, because the mean of its divisors is an integer number (31955625).

Almost surely, 2^63911249 is an apocalyptic number.

It is an amenable number.

63911249 is a deficient number, since it is larger than the sum of its proper divisors (1).

63911249 is an equidigital number, since it uses as much as digits as its factorization.

63911249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 63911249 is about 7994.4511381332. The cubic root of 63911249 is about 399.8150165493.

The spelling of 63911249 in words is "sixty-three million, nine hundred eleven thousand, two hundred forty-nine".