64575163 has 4 divisors (see below), whose sum is σ = 68373720. Its totient is φ = 60776608.

The previous prime is 64575151. The next prime is 64575209. The reversal of 64575163 is 36157546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36157546 = 2 ⋅18078773.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64575163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64575103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899253 + ... + 1899286.

It is an arithmetic number, because the mean of its divisors is an integer number (17093430).

Almost surely, 2^64575163 is an apocalyptic number.

64575163 is a deficient number, since it is larger than the sum of its proper divisors (3798557).

64575163 is a wasteful number, since it uses less digits than its factorization.

64575163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798556.

The product of its digits is 75600, while the sum is 37.

The square root of 64575163 is about 8035.8672836228. The cubic root of 64575163 is about 401.1946845199.

The spelling of 64575163 in words is "sixty-four million, five hundred seventy-five thousand, one hundred sixty-three".