64083565 has 32 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 40207104.

The previous prime is 64083529. The next prime is 64083577. The reversal of 64083565 is 56538046.

It is not a de Polignac number, because 64083565 - 2¹⁵ = 64050797 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57231 + ... + 58339.

It is an arithmetic number, because the mean of its divisors is an integer number (2983680).

Almost surely, 2^64083565 is an apocalyptic number.

64083565 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64083565 is a deficient number, since it is larger than the sum of its proper divisors (31394195).

64083565 is a wasteful number, since it uses less digits than its factorization.

64083565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 64083565 is about 8005.2211087515. The cubic root of 64083565 is about 400.1740180333.

The spelling of 64083565 in words is "sixty-four million, eighty-three thousand, five hundred sixty-five".