650825280 has 560 divisors, whose sum is σ = 2814742656. Its totient is φ = 139345920.

The previous prime is 650825249. The next prime is 650825281. The reversal of 650825280 is 82528056.

650825280 is a `hidden beast` number, since 6 + 50 + 82 + 528 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (650825281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3084375 + ... + 3084585.

Almost surely, 2^650825280 is an apocalyptic number.

650825280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407371328).

650825280 is an abundant number, since it is smaller than the sum of its proper divisors (2163917376).

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

650825280 is a wasteful number, since it uses less digits than its factorization.

650825280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 650825280 is about 25511.2775062324. The cubic root of 650825280 is about 866.6055604517.

The spelling of 650825280 in words is "six hundred fifty million, eight hundred twenty-five thousand, two hundred eighty".