650584226497 has 4 divisors (see below), whose sum is σ = 650586499156. Its totient is φ = 650581953840.

The previous prime is 650584226431. The next prime is 650584226521. The reversal of 650584226497 is 794622485056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 381675604401 + 268908622096 = 617799^2 + 518564^2 .

It is a cyclic number.

It is not a de Polignac number, because 650584226497 - 2²³ = 650575837889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650584226417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632454 + ... + 1304287.

It is an arithmetic number, because the mean of its divisors is an integer number (162646624789).

Almost surely, 2^650584226497 is an apocalyptic number.

It is an amenable number.

650584226497 is a deficient number, since it is larger than the sum of its proper divisors (2272659).

650584226497 is a wasteful number, since it uses less digits than its factorization.

650584226497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272658.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 650584226497 in words is "six hundred fifty billion, five hundred eighty-four million, two hundred twenty-six thousand, four hundred ninety-seven".