650226561 has 4 divisors (see below), whose sum is σ = 866968752. Its totient is φ = 433484372.

The previous prime is 650226559. The next prime is 650226617. The reversal of 650226561 is 165622056.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 650226561 - 2¹ = 650226559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650226541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108371091 + ... + 108371096.

It is an arithmetic number, because the mean of its divisors is an integer number (216742188).

Almost surely, 2^650226561 is an apocalyptic number.

It is an amenable number.

650226561 is a deficient number, since it is larger than the sum of its proper divisors (216742191).

650226561 is a wasteful number, since it uses less digits than its factorization.

650226561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216742190.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 650226561 is about 25499.5404076230. The cubic root of 650226561 is about 866.3397377513.

The spelling of 650226561 in words is "six hundred fifty million, two hundred twenty-six thousand, five hundred sixty-one".