65005205 has 8 divisors (see below), whose sum is σ = 78164352. Its totient is φ = 51898768.

The previous prime is 65005201. The next prime is 65005217. The reversal of 65005205 is 50250056.

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 65005205 - 2² = 65005201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005201) 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, 10409 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (9770544).

Almost surely, 2^65005205 is an apocalyptic number.

It is an amenable number.

65005205 is a deficient number, since it is larger than the sum of its proper divisors (13159147).

65005205 is a wasteful number, since it uses less digits than its factorization.

65005205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26355.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 65005205 is about 8062.5805422334. The cubic root of 65005205 is about 402.0833078174.

The spelling of 65005205 in words is "sixty-five million, five thousand, two hundred five".