63881225 has 12 divisors (see below), whose sum is σ = 80899584. Its totient is φ = 50016720.

The previous prime is 63881221. The next prime is 63881227. The reversal of 63881225 is 52218836.

It is not a de Polignac number, because 63881225 - 2² = 63881221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63881221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26009 + ... + 28358.

It is an arithmetic number, because the mean of its divisors is an integer number (6741632).

Almost surely, 2^63881225 is an apocalyptic number.

It is an amenable number.

63881225 is a deficient number, since it is larger than the sum of its proper divisors (17018359).

63881225 is a wasteful number, since it uses less digits than its factorization.

63881225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54424 (or 54419 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 63881225 is about 7992.5731150863. The cubic root of 63881225 is about 399.7523988491.

The spelling of 63881225 in words is "sixty-three million, eight hundred eighty-one thousand, two hundred twenty-five".