5133261685 has 4 divisors (see below), whose sum is σ = 6159914028. Its totient is φ = 4106609344.

The previous prime is 5133261659. The next prime is 5133261701. The reversal of 5133261685 is 5861623315.

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 697435281 + 4435826404 = 26409^2 + 66602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5133261685 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513326164 + ... + 513326173.

It is an arithmetic number, because the mean of its divisors is an integer number (1539978507).

Almost surely, 2^5133261685 is an apocalyptic number.

It is an amenable number.

5133261685 is a deficient number, since it is larger than the sum of its proper divisors (1026652343).

5133261685 is a wasteful number, since it uses less digits than its factorization.

5133261685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026652342.

The product of its digits is 129600, while the sum is 40.

The square root of 5133261685 is about 71646.7841916160. The cubic root of 5133261685 is about 1725.0345645948.

The spelling of 5133261685 in words is "five billion, one hundred thirty-three million, two hundred sixty-one thousand, six hundred eighty-five".