63117853 has 2 divisors, whose sum is σ = 63117854. Its totient is φ = 63117852.

The previous prime is 63117827. The next prime is 63117863. The reversal of 63117853 is 35871136.

63117853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57486724 + 5631129 = 7582^2 + 2373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63117853 is a prime.

It is equal to p_3735862 and since 63117853 and 3735862 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63117823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31558926 + 31558927.

It is an arithmetic number, because the mean of its divisors is an integer number (31558927).

Almost surely, 2^63117853 is an apocalyptic number.

It is an amenable number.

63117853 is a deficient number, since it is larger than the sum of its proper divisors (1).

63117853 is an equidigital number, since it uses as much as digits as its factorization.

63117853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 63117853 is about 7944.6745056044. The cubic root of 63117853 is about 398.1536846614.

Adding to 63117853 its reverse (35871136), we get a palindrome (98988989).

The spelling of 63117853 in words is "sixty-three million, one hundred seventeen thousand, eight hundred fifty-three".