63563385 has 8 divisors (see below), whose sum is σ = 101701440. Its totient is φ = 33900464.

The previous prime is 63563371. The next prime is 63563413. The reversal of 63563385 is 58336536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63563385 - 2¹⁸ = 63301241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118765 + ... + 2118794.

It is an arithmetic number, because the mean of its divisors is an integer number (12712680).

Almost surely, 2^63563385 is an apocalyptic number.

It is an amenable number.

63563385 is a deficient number, since it is larger than the sum of its proper divisors (38138055).

63563385 is a wasteful number, since it uses less digits than its factorization.

63563385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237567.

The product of its digits is 194400, while the sum is 39.

The square root of 63563385 is about 7972.6648618890. The cubic root of 63563385 is about 399.0883090444.

The spelling of 63563385 in words is "sixty-three million, five hundred sixty-three thousand, three hundred eighty-five".