64264563 has 16 divisors (see below), whose sum is σ = 103862400. Its totient is φ = 38948040.

The previous prime is 64264559. The next prime is 64264633. The reversal of 64264563 is 36546246.

64264563 is a `hidden beast` number, since 6 + 4 + 2 + 645 + 6 + 3 = 666.

It is not a de Polignac number, because 64264563 - 2² = 64264559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64264663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107893 + ... + 108486.

It is an arithmetic number, because the mean of its divisors is an integer number (6491400).

Almost surely, 2^64264563 is an apocalyptic number.

64264563 is a deficient number, since it is larger than the sum of its proper divisors (39597837).

64264563 is a wasteful number, since it uses less digits than its factorization.

64264563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216399 (or 216393 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 64264563 is about 8016.5181344521. The cubic root of 64264563 is about 400.5504151771.

The spelling of 64264563 in words is "sixty-four million, two hundred sixty-four thousand, five hundred sixty-three".