650065220 has 24 divisors (see below), whose sum is σ = 1560156864. Its totient is φ = 222879456.

The previous prime is 650065217. The next prime is 650065313. The reversal of 650065220 is 22560056.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 650065220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2321522 + ... + 2321801.

It is an arithmetic number, because the mean of its divisors is an integer number (65006536).

Almost surely, 2^650065220 is an apocalyptic number.

It is an amenable number.

650065220 is an abundant number, since it is smaller than the sum of its proper divisors (910091644).

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

650065220 is a wasteful number, since it uses less digits than its factorization.

650065220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4643339 (or 4643337 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 650065220 is about 25496.3766053139. The cubic root of 650065220 is about 866.2680767383.

The spelling of 650065220 in words is "six hundred fifty million, sixty-five thousand, two hundred twenty".