650001331 has 24 divisors (see below), whose sum is σ = 788415264. Its totient is φ = 524616960.

The previous prime is 650001329. The next prime is 650001361. The reversal of 650001331 is 133100056.

It is not a de Polignac number, because 650001331 - 2¹ = 650001329 is a prime.

It is a super-2 number, since 2×650001331² = 845003460603543122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 650001299 and 650001308.

It is not an unprimeable number, because it can be changed into a prime (650001361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240021 + ... + 242713.

It is an arithmetic number, because the mean of its divisors is an integer number (32850636).

Almost surely, 2^650001331 is an apocalyptic number.

650001331 is a deficient number, since it is larger than the sum of its proper divisors (138413933).

650001331 is a wasteful number, since it uses less digits than its factorization.

650001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 650001331 is about 25495.1236710081. The cubic root of 650001331 is about 866.2396966042.

Adding to 650001331 its reverse (133100056), we get a palindrome (783101387).

The spelling of 650001331 in words is "six hundred fifty million, one thousand, three hundred thirty-one".