4650564521 has 8 divisors (see below), whose sum is σ = 4785658440. Its totient is φ = 4515965568.

The previous prime is 4650564487. The next prime is 4650564547. The reversal of 4650564521 is 1254650564.

It can be written as a sum of positive squares in 4 ways, for example, as 1579188121 + 3071376400 = 39739^2 + 55420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4650564521 - 2¹⁰ = 4650563497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4650564551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104636 + ... + 142301.

It is an arithmetic number, because the mean of its divisors is an integer number (598207305).

Almost surely, 2^4650564521 is an apocalyptic number.

It is an amenable number.

4650564521 is a deficient number, since it is larger than the sum of its proper divisors (135093919).

4650564521 is a wasteful number, since it uses less digits than its factorization.

4650564521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247483.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 4650564521 is about 68195.0476281086. The cubic root of 4650564521 is about 1669.1750764653.

The spelling of 4650564521 in words is "four billion, six hundred fifty million, five hundred sixty-four thousand, five hundred twenty-one".