64505195 has 8 divisors (see below), whose sum is σ = 77508144. Its totient is φ = 51536224.

The previous prime is 64505183. The next prime is 64505227. The reversal of 64505195 is 59150546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64505195 - 2⁸ = 64504939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4109 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (9688518).

Almost surely, 2^64505195 is an apocalyptic number.

64505195 is a deficient number, since it is larger than the sum of its proper divisors (13002949).

64505195 is a wasteful number, since it uses less digits than its factorization.

64505195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16989.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 64505195 is about 8031.5126221653. The cubic root of 64505195 is about 401.0497323286.

The spelling of 64505195 in words is "sixty-four million, five hundred five thousand, one hundred ninety-five".