64745575 has 12 divisors (see below), whose sum is σ = 83775888. Its totient is φ = 49544000.

The previous prime is 64745557. The next prime is 64745581. The reversal of 64745575 is 57554746.

It is not a de Polignac number, because 64745575 - 2¹⁷ = 64614503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 55726 + ... + 56875.

It is an arithmetic number, because the mean of its divisors is an integer number (6981324).

Almost surely, 2^64745575 is an apocalyptic number.

64745575 is a deficient number, since it is larger than the sum of its proper divisors (19030313).

64745575 is a wasteful number, since it uses less digits than its factorization.

64745575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112634 (or 112629 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

The square root of 64745575 is about 8046.4635088963. The cubic root of 64745575 is about 401.5472882800.

The spelling of 64745575 in words is "sixty-four million, seven hundred forty-five thousand, five hundred seventy-five".