64550085 has 32 divisors (see below), whose sum is σ = 107568000. Its totient is φ = 33014016.

The previous prime is 64550081. The next prime is 64550093. The reversal of 64550085 is 58005546.

It is not a de Polignac number, because 64550085 - 2² = 64550081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64550081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77451 + ... + 78279.

It is an arithmetic number, because the mean of its divisors is an integer number (3361500).

Almost surely, 2^64550085 is an apocalyptic number.

It is an amenable number.

64550085 is a deficient number, since it is larger than the sum of its proper divisors (43017915).

64550085 is a wasteful number, since it uses less digits than its factorization.

64550085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 64550085 is about 8034.3067529190. The cubic root of 64550085 is about 401.1427426558.

The spelling of 64550085 in words is "sixty-four million, five hundred fifty thousand, eighty-five".