650725920 has 192 divisors, whose sum is σ = 2452947840. Its totient is φ = 160164864.

The previous prime is 650725897. The next prime is 650725937. The reversal of 650725920 is 29527056.

650725920 is a `hidden beast` number, since 65 + 0 + 7 + 2 + 592 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50367 + ... + 61953.

It is an arithmetic number, because the mean of its divisors is an integer number (12775770).

Almost surely, 2^650725920 is an apocalyptic number.

650725920 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 650725920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226473920).

650725920 is an abundant number, since it is smaller than the sum of its proper divisors (1802221920).

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

650725920 is a wasteful number, since it uses less digits than its factorization.

650725920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11624 (or 11610 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 650725920 is about 25509.3300578435. The cubic root of 650725920 is about 866.5614573141.

The spelling of 650725920 in words is "six hundred fifty million, seven hundred twenty-five thousand, nine hundred twenty".