650001065 has 16 divisors (see below), whose sum is σ = 891868800. Its totient is φ = 445495680.

The previous prime is 650001061. The next prime is 650001071. The reversal of 650001065 is 560100056.

650001065 = T₉₃₀₂ + T₉₃₀₃ + ... + T₉₃₁₆.

It is not a de Polignac number, because 650001065 - 2² = 650001061 is a prime.

It is a super-2 number, since 2×650001065² = 845002769002268450, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 650001065.

It is not an unprimeable number, because it can be changed into a prime (650001061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103670 + ... + 109760.

It is an arithmetic number, because the mean of its divisors is an integer number (55741800).

Almost surely, 2^650001065 is an apocalyptic number.

It is an amenable number.

650001065 is a deficient number, since it is larger than the sum of its proper divisors (241867735).

650001065 is a wasteful number, since it uses less digits than its factorization.

650001065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 650001065 is about 25495.1184543238. The cubic root of 650001065 is about 866.2395784405.

The spelling of 650001065 in words is "six hundred fifty million, one thousand, sixty-five".