564551001 has 18 divisors (see below), whose sum is σ = 948600042. Its totient is φ = 322600320.

The previous prime is 564550993. The next prime is 564551023. The reversal of 564551001 is 100155465.

It is a happy number.

564551001 is a `hidden beast` number, since 5 + 645 + 5 + 10 + 0 + 1 = 666.

564551001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 372451401 + 192099600 = 19299^2 + 13860^2 .

It is not a de Polignac number, because 564551001 - 2³ = 564550993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (564551041) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 639640 + ... + 640521.

Almost surely, 2^564551001 is an apocalyptic number.

It is an amenable number.

564551001 is a deficient number, since it is larger than the sum of its proper divisors (384049041).

564551001 is a wasteful number, since it uses less digits than its factorization.

564551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280181 (or 1280171 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 564551001 is about 23760.2820059022. The cubic root of 564551001 is about 826.4838924708.

The spelling of 564551001 in words is "five hundred sixty-four million, five hundred fifty-one thousand, one".