63659249 has 2 divisors, whose sum is σ = 63659250. Its totient is φ = 63659248.

The previous prime is 63659191. The next prime is 63659251. The reversal of 63659249 is 94295636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40233649 + 23425600 = 6343^2 + 4840^2 .

It is a cyclic number.

It is not a de Polignac number, because 63659249 - 2²⁰ = 62610673 is a prime.

Together with 63659251, 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 (63659269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31829624 + 31829625.

It is an arithmetic number, because the mean of its divisors is an integer number (31829625).

Almost surely, 2^63659249 is an apocalyptic number.

It is an amenable number.

63659249 is a deficient number, since it is larger than the sum of its proper divisors (1).

63659249 is an equidigital number, since it uses as much as digits as its factorization.

63659249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 63659249 is about 7978.6746393120. The cubic root of 63659249 is about 399.2888384558.

The spelling of 63659249 in words is "sixty-three million, six hundred fifty-nine thousand, two hundred forty-nine".