63115863 has 16 divisors (see below), whose sum is σ = 86012640. Its totient is φ = 41158656.

The previous prime is 63115847. The next prime is 63115879. The reversal of 63115863 is 36851136.

63115863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63115847) and next prime (63115879).

It is not a de Polignac number, because 63115863 - 2⁴ = 63115847 is a prime.

It is a super-2 number, since 2×63115863² = 7967224324469538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63115363) 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 in 15 ways as a sum of consecutive naturals, for example, 24681 + ... + 27117.

It is an arithmetic number, because the mean of its divisors is an integer number (5375790).

Almost surely, 2^63115863 is an apocalyptic number.

63115863 is a deficient number, since it is larger than the sum of its proper divisors (22896777).

63115863 is a wasteful number, since it uses less digits than its factorization.

63115863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626.

The product of its digits is 12960, while the sum is 33.

The square root of 63115863 is about 7944.5492634888. The cubic root of 63115863 is about 398.1495002449.

Adding to 63115863 its reverse (36851136), we get a palindrome (99966999).

The spelling of 63115863 in words is "sixty-three million, one hundred fifteen thousand, eight hundred sixty-three".