63456563 has 8 divisors (see below), whose sum is σ = 70111008. Its totient is φ = 57126784.

The previous prime is 63456559. The next prime is 63456577. The reversal of 63456563 is 36565436.

It is a happy number.

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 63456563 - 2² = 63456559 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63453563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80756 + ... + 81537.

It is an arithmetic number, because the mean of its divisors is an integer number (8763876).

Almost surely, 2^63456563 is an apocalyptic number.

63456563 is a deficient number, since it is larger than the sum of its proper divisors (6654445).

63456563 is a wasteful number, since it uses less digits than its factorization.

63456563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162333.

The product of its digits is 194400, while the sum is 38.

The square root of 63456563 is about 7965.9627792251. The cubic root of 63456563 is about 398.8646199127.

The spelling of 63456563 in words is "sixty-three million, four hundred fifty-six thousand, five hundred sixty-three".