5205131305 has 8 divisors (see below), whose sum is σ = 6813990144. Its totient is φ = 3785550000.

The previous prime is 5205131297. The next prime is 5205131363. The reversal of 5205131305 is 5031315025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5205131305 - 2³ = 5205131297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5205131305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47319321 + ... + 47319430.

It is an arithmetic number, because the mean of its divisors is an integer number (851748768).

Almost surely, 2^5205131305 is an apocalyptic number.

5205131305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5205131305 is a deficient number, since it is larger than the sum of its proper divisors (1608858839).

5205131305 is a wasteful number, since it uses less digits than its factorization.

5205131305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94638767.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 5205131305 is about 72146.5959349435. The cubic root of 5205131305 is about 1733.0478870640.

The spelling of 5205131305 in words is "five billion, two hundred five million, one hundred thirty-one thousand, three hundred five".