5164575021 has 6 divisors (see below), whose sum is σ = 7459941710. Its totient is φ = 3443050008.

The previous prime is 5164575007. The next prime is 5164575067. The reversal of 5164575021 is 1205754615.

5164575021 is a `hidden beast` number, since 5 + 1 + 64 + 575 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4797086121 + 367488900 = 69261^2 + 19170^2 .

It is not a de Polignac number, because 5164575021 - 2⁶ = 5164574957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5164575001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286920826 + ... + 286920843.

Almost surely, 2^5164575021 is an apocalyptic number.

It is an amenable number.

5164575021 is a deficient number, since it is larger than the sum of its proper divisors (2295366689).

5164575021 is a wasteful number, since it uses less digits than its factorization.

5164575021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573841675 (or 573841672 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 5164575021 is about 71864.9777081994. The cubic root of 5164575021 is about 1728.5350759454.

The spelling of 5164575021 in words is "five billion, one hundred sixty-four million, five hundred seventy-five thousand, twenty-one".