63253709 has 2 divisors, whose sum is σ = 63253710. Its totient is φ = 63253708.

The previous prime is 63253699. The next prime is 63253711. The reversal of 63253709 is 90735236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60684100 + 2569609 = 7790^2 + 1603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63253709 is a prime.

Together with 63253711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63253789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31626854 + 31626855.

It is an arithmetic number, because the mean of its divisors is an integer number (31626855).

Almost surely, 2^63253709 is an apocalyptic number.

It is an amenable number.

63253709 is a deficient number, since it is larger than the sum of its proper divisors (1).

63253709 is an equidigital number, since it uses as much as digits as its factorization.

63253709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 63253709 is about 7953.2200397072. The cubic root of 63253709 is about 398.4391443295.

The spelling of 63253709 in words is "sixty-three million, two hundred fifty-three thousand, seven hundred nine".