5164523509 has 2 divisors, whose sum is σ = 5164523510. Its totient is φ = 5164523508.

The previous prime is 5164523503. The next prime is 5164523543. The reversal of 5164523509 is 9053254615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4675140625 + 489382884 = 68375^2 + 22122^2 .

It is a cyclic number.

It is not a de Polignac number, because 5164523509 - 2⁹ = 5164522997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5164523503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582261754 + 2582261755.

It is an arithmetic number, because the mean of its divisors is an integer number (2582261755).

Almost surely, 2^5164523509 is an apocalyptic number.

It is an amenable number.

5164523509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5164523509 is an equidigital number, since it uses as much as digits as its factorization.

5164523509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 5164523509 is about 71864.6193129832. The cubic root of 5164523509 is about 1728.5293290643.

The spelling of 5164523509 in words is "five billion, one hundred sixty-four million, five hundred twenty-three thousand, five hundred nine".