650804560 has 80 divisors (see below), whose sum is σ = 1733746176. Its totient is φ = 222557184.

The previous prime is 650804551. The next prime is 650804569. The reversal of 650804560 is 65408056.

650804560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (650804551) and next prime (650804569).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650804569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254649 + ... + 257191.

Almost surely, 2^650804560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650804560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866873088).

650804560 is an abundant number, since it is smaller than the sum of its proper divisors (1082941616).

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

650804560 is a wasteful number, since it uses less digits than its factorization.

650804560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 3014 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 650804560 is about 25510.8714080880. The cubic root of 650804560 is about 866.5963637910.

The spelling of 650804560 in words is "six hundred fifty million, eight hundred four thousand, five hundred sixty".