650566001 has 4 divisors (see below), whose sum is σ = 650799600. Its totient is φ = 650332404.

The previous prime is 650565997. The next prime is 650566003. The reversal of 650566001 is 100665056.

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 650566001 - 2² = 650565997 is a prime.

It is a super-2 number, since 2×650566001² = 846472243314264002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650566003) 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, 112571 + ... + 118208.

It is an arithmetic number, because the mean of its divisors is an integer number (162699900).

Almost surely, 2^650566001 is an apocalyptic number.

It is an amenable number.

650566001 is a deficient number, since it is larger than the sum of its proper divisors (233599).

650566001 is a wasteful number, since it uses less digits than its factorization.

650566001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233598.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 650566001 is about 25506.1953454450. The cubic root of 650566001 is about 866.4904642937.

The spelling of 650566001 in words is "six hundred fifty million, five hundred sixty-six thousand, one".