650420444250 has 240 divisors, whose sum is σ = 1840459122216. Its totient is φ = 165743740800.

The previous prime is 650420444239. The next prime is 650420444263. The reversal of 650420444250 is 52444024056.

650420444250 is a `hidden beast` number, since 6 + 5 + 0 + 4 + 204 + 442 + 5 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 381112379649 + 269308064601 = 617343^2 + 518949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 629641734 + ... + 629642766.

Almost surely, 2^650420444250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650420444250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920229561108).

650420444250 is an abundant number, since it is smaller than the sum of its proper divisors (1190038677966).

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

650420444250 is an equidigital number, since it uses as much as digits as its factorization.

650420444250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 650420444250 in words is "six hundred fifty billion, four hundred twenty million, four hundred forty-four thousand, two hundred fifty".