650543320 has 32 divisors (see below), whose sum is σ = 1672826400. Its totient is φ = 223043328.

The previous prime is 650543281. The next prime is 650543321. The reversal of 650543320 is 23345056.

It is a super-2 number, since 2×650543320² = 846413222393244800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650543321) 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, 1161405 + ... + 1161964.

It is an arithmetic number, because the mean of its divisors is an integer number (52275825).

Almost surely, 2^650543320 is an apocalyptic number.

It is an amenable number.

650543320 is an abundant number, since it is smaller than the sum of its proper divisors (1022283080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650543320 is a wasteful number, since it uses less digits than its factorization.

650543320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323387 (or 2323383 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 650543320 is about 25505.7507241014. The cubic root of 650543320 is about 866.4803945500.

Adding to 650543320 its reverse (23345056), we get a palindrome (673888376).

The spelling of 650543320 in words is "six hundred fifty million, five hundred forty-three thousand, three hundred twenty".