64450563 has 8 divisors (see below), whose sum is σ = 85971648. Its totient is φ = 42948264.

The previous prime is 64450543. The next prime is 64450571. The reversal of 64450563 is 36505446.

64450563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 64450563 - 2⁹ = 64450051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64450543) 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 7 ways as a sum of consecutive naturals, for example, 9120 + ... + 14562.

It is an arithmetic number, because the mean of its divisors is an integer number (10746456).

Almost surely, 2^64450563 is an apocalyptic number.

64450563 is a deficient number, since it is larger than the sum of its proper divisors (21521085).

64450563 is a wasteful number, since it uses less digits than its factorization.

64450563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64450563 is about 8028.1107989364. The cubic root of 64450563 is about 400.9364787247.

The spelling of 64450563 in words is "sixty-four million, four hundred fifty thousand, five hundred sixty-three".