5164364561 has 4 divisors (see below), whose sum is σ = 5164517412. Its totient is φ = 5164211712.

The previous prime is 5164364549. The next prime is 5164364563. The reversal of 5164364561 is 1654634615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2729435536 + 2434929025 = 52244^2 + 49345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5164364561 is a prime.

It is a super-2 number, since 2×5164364561² = 53341322637825445442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5164364563) 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 3 ways as a sum of consecutive naturals, for example, 800 + ... + 101633.

It is an arithmetic number, because the mean of its divisors is an integer number (1291129353).

Almost surely, 2^5164364561 is an apocalyptic number.

It is an amenable number.

5164364561 is a deficient number, since it is larger than the sum of its proper divisors (152851).

5164364561 is a wasteful number, since it uses less digits than its factorization.

5164364561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152850.

The product of its digits is 259200, while the sum is 41.

The square root of 5164364561 is about 71863.5134195372. The cubic root of 5164364561 is about 1728.5115959603.

The spelling of 5164364561 in words is "five billion, one hundred sixty-four million, three hundred sixty-four thousand, five hundred sixty-one".