5185247805 has 40 divisors (see below), whose sum is σ = 9307683000. Its totient is φ = 2761703424.

The previous prime is 5185247777. The next prime is 5185247813. The reversal of 5185247805 is 5087425815.

5185247805 is a `hidden beast` number, since 51 + 8 + 524 + 78 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 820135044 + 4365112761 = 28638^2 + 66069^2 .

It is not a de Polignac number, because 5185247805 - 2⁸ = 5185247549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 303121 + ... + 319769.

It is an arithmetic number, because the mean of its divisors is an integer number (232692075).

Almost surely, 2^5185247805 is an apocalyptic number.

It is an amenable number.

5185247805 is a deficient number, since it is larger than the sum of its proper divisors (4122435195).

5185247805 is a wasteful number, since it uses less digits than its factorization.

5185247805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17435 (or 17426 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The square root of 5185247805 is about 72008.6647911208. The cubic root of 5185247805 is about 1730.8383348203.

The spelling of 5185247805 in words is "five billion, one hundred eighty-five million, two hundred forty-seven thousand, eight hundred five".