65500205 has 16 divisors (see below), whose sum is σ = 83251584. Its totient is φ = 49368000.

The previous prime is 65500189. The next prime is 65500219. The reversal of 65500205 is 50200556.

It is not a de Polignac number, because 65500205 - 2⁴ = 65500189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3455 + ... + 11955.

It is an arithmetic number, because the mean of its divisors is an integer number (5203224).

Almost surely, 2^65500205 is an apocalyptic number.

It is an amenable number.

65500205 is a deficient number, since it is larger than the sum of its proper divisors (17751379).

65500205 is a wasteful number, since it uses less digits than its factorization.

65500205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596.

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

The square root of 65500205 is about 8093.2196930517. The cubic root of 65500205 is about 403.1013194831.

The spelling of 65500205 in words is "sixty-five million, five hundred thousand, two hundred five".