65505893 has 8 divisors (see below), whose sum is σ = 66628416. Its totient is φ = 64389600.

The previous prime is 65505889. The next prime is 65505907. The reversal of 65505893 is 39850556.

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 65505893 - 2² = 65505889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65505893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22808 + ... + 25518.

It is an arithmetic number, because the mean of its divisors is an integer number (8328552).

Almost surely, 2^65505893 is an apocalyptic number.

It is an amenable number.

65505893 is a deficient number, since it is larger than the sum of its proper divisors (1122523).

65505893 is a wasteful number, since it uses less digits than its factorization.

65505893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 65505893 is about 8093.5710906867. The cubic root of 65505893 is about 403.1129875074.

The spelling of 65505893 in words is "sixty-five million, five hundred five thousand, eight hundred ninety-three".