650441881 has 2 divisors, whose sum is σ = 650441882. Its totient is φ = 650441880.

The previous prime is 650441861. The next prime is 650441903. The reversal of 650441881 is 188144056.

650441881 is nontrivially palindromic in base 12.

650441881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 583464025 + 66977856 = 24155^2 + 8184^2 .

It is a cyclic number.

It is not a de Polignac number, because 650441881 - 2⁵ = 650441849 is a prime.

It is a super-3 number, since 3×650441881³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 650441881.

It is not a weakly prime, because it can be changed into another prime (650441861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325220940 + 325220941.

It is an arithmetic number, because the mean of its divisors is an integer number (325220941).

Almost surely, 2^650441881 is an apocalyptic number.

It is an amenable number.

650441881 is a deficient number, since it is larger than the sum of its proper divisors (1).

650441881 is an equidigital number, since it uses as much as digits as its factorization.

650441881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 650441881 is about 25503.7620950322. The cubic root of 650441881 is about 866.4353555440.

The spelling of 650441881 in words is "six hundred fifty million, four hundred forty-one thousand, eight hundred eighty-one".