65505894 has 8 divisors (see below), whose sum is σ = 131011800. Its totient is φ = 21835296.

The previous prime is 65505889. The next prime is 65505907. The reversal of 65505894 is 49850556.

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

65505894 is an admirable number.

It is a Smith number, since the sum of its digits (42) 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 3 ways as a sum of consecutive naturals, for example, 5458819 + ... + 5458830.

It is an arithmetic number, because the mean of its divisors is an integer number (16376475).

Almost surely, 2^65505894 is an apocalyptic number.

65505894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65505894 is a wasteful number, since it uses less digits than its factorization.

65505894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917654.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 65505894 is about 8093.5711524642. The cubic root of 65505894 is about 403.1129895586.

The spelling of 65505894 in words is "sixty-five million, five hundred five thousand, eight hundred ninety-four".