63778225 has 12 divisors (see below), whose sum is σ = 90383104. Its totient is φ = 43733520.

The previous prime is 63778219. The next prime is 63778243. The reversal of 63778225 is 52287736.

It is not a de Polignac number, because 63778225 - 2¹¹ = 63776177 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182049 + ... + 182398.

Almost surely, 2^63778225 is an apocalyptic number.

It is an amenable number.

63778225 is a deficient number, since it is larger than the sum of its proper divisors (26604879).

63778225 is a wasteful number, since it uses less digits than its factorization.

63778225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364464 (or 364459 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 63778225 is about 7986.1270338006. The cubic root of 63778225 is about 399.5374340380.

The spelling of 63778225 in words is "sixty-three million, seven hundred seventy-eight thousand, two hundred twenty-five".