64065075 has 48 divisors (see below), whose sum is σ = 109921536. Its totient is φ = 32905600.

The previous prime is 64065049. The next prime is 64065101. The reversal of 64065075 is 57056046.

It is an interprime number because it is at equal distance from previous prime (64065049) and next prime (64065101).

It is not a de Polignac number, because 64065075 - 2⁷ = 64064947 is a prime.

It is a super-3 number, since 3×64065075³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282112 + ... + 282338.

It is an arithmetic number, because the mean of its divisors is an integer number (2290032).

Almost surely, 2^64065075 is an apocalyptic number.

64065075 is a deficient number, since it is larger than the sum of its proper divisors (45856461).

64065075 is a wasteful number, since it uses less digits than its factorization.

64065075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 64065075 is about 8004.0661541494. The cubic root of 64065075 is about 400.1355269926.

Adding to 64065075 its reverse (57056046), we get a palindrome (121121121).

The spelling of 64065075 in words is "sixty-four million, sixty-five thousand, seventy-five".