650261641 has 2 divisors, whose sum is σ = 650261642. Its totient is φ = 650261640.

The previous prime is 650261617. The next prime is 650261659. The reversal of 650261641 is 146162056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489073225 + 161188416 = 22115^2 + 12696^2 .

It is a cyclic number.

It is not a de Polignac number, because 650261641 - 2¹¹ = 650259593 is a prime.

It is not a weakly prime, because it can be changed into another prime (650261671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325130820 + 325130821.

It is an arithmetic number, because the mean of its divisors is an integer number (325130821).

Almost surely, 2^650261641 is an apocalyptic number.

It is an amenable number.

650261641 is a deficient number, since it is larger than the sum of its proper divisors (1).

650261641 is an equidigital number, since it uses as much as digits as its factorization.

650261641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 650261641 is about 25500.2282538804. The cubic root of 650261641 is about 866.3553172705.

The spelling of 650261641 in words is "six hundred fifty million, two hundred sixty-one thousand, six hundred forty-one".