650481617 has 6 divisors (see below), whose sum is σ = 655530498. Its totient is φ = 645437232.

The previous prime is 650481583. The next prime is 650481619. The reversal of 650481617 is 716184056.

It can be written as a sum of positive squares in only one way, i.e., 574512961 + 75968656 = 23969^2 + 8716^2 .

It is not a de Polignac number, because 650481617 - 2⁸ = 650481361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650481619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297434 + ... + 299612.

It is an arithmetic number, because the mean of its divisors is an integer number (109255083).

Almost surely, 2^650481617 is an apocalyptic number.

It is an amenable number.

650481617 is a deficient number, since it is larger than the sum of its proper divisors (5048881).

650481617 is an frugal number, since it uses more digits than its factorization.

650481617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 650481617 is about 25504.5411054581. The cubic root of 650481617 is about 866.4529989211.

The spelling of 650481617 in words is "six hundred fifty million, four hundred eighty-one thousand, six hundred seventeen".