64750565 has 16 divisors (see below), whose sum is σ = 85250880. Its totient is φ = 46821120.

The previous prime is 64750531. The next prime is 64750571. The reversal of 64750565 is 56505746.

It is not a de Polignac number, because 64750565 - 2¹⁰ = 64749541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6557 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (5328180).

Almost surely, 2^64750565 is an apocalyptic number.

It is an amenable number.

64750565 is a deficient number, since it is larger than the sum of its proper divisors (20500315).

64750565 is a wasteful number, since it uses less digits than its factorization.

64750565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 64750565 is about 8046.7735770307. The cubic root of 64750565 is about 401.5576038859.

The spelling of 64750565 in words is "sixty-four million, seven hundred fifty thousand, five hundred sixty-five".