64500285 has 16 divisors (see below), whose sum is σ = 103957056. Its totient is φ = 34147968.

The previous prime is 64500283. The next prime is 64500299. The reversal of 64500285 is 58200546.

It is not a de Polignac number, because 64500285 - 2¹ = 64500283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64500283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13639 + ... + 17748.

It is an arithmetic number, because the mean of its divisors is an integer number (6497316).

Almost surely, 2^64500285 is an apocalyptic number.

It is an amenable number.

64500285 is a deficient number, since it is larger than the sum of its proper divisors (39456771).

64500285 is a wasteful number, since it uses less digits than its factorization.

64500285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31532.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 64500285 is about 8031.2069454099. The cubic root of 64500285 is about 401.0395563825.

The spelling of 64500285 in words is "sixty-four million, five hundred thousand, two hundred eighty-five".