63518025 has 24 divisors (see below), whose sum is σ = 106111264. Its totient is φ = 33523200.

The previous prime is 63518023. The next prime is 63518027. The reversal of 63518025 is 52081536.

63518025 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 (63518023) and next prime (63518027).

It is not a de Polignac number, because 63518025 - 2¹ = 63518023 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63517983 and 63518001.

It is not an unprimeable number, because it can be changed into a prime (63518023) 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 23 ways as a sum of consecutive naturals, for example, 2910 + ... + 11640.

Almost surely, 2^63518025 is an apocalyptic number.

It is an amenable number.

63518025 is a deficient number, since it is larger than the sum of its proper divisors (42593239).

63518025 is a wasteful number, since it uses less digits than its factorization.

63518025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841 (or 8836 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 63518025 is about 7969.8196340946. The cubic root of 63518025 is about 398.9933542024.

The spelling of 63518025 in words is "sixty-three million, five hundred eighteen thousand, twenty-five".