500785757825 has 6 divisors (see below), whose sum is σ = 620974339734. Its totient is φ = 400628606240.

The previous prime is 500785757821. The next prime is 500785757833. The reversal of 500785757825 is 528757587005.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25342411249 + 475443346576 = 159193^2 + 689524^2 .

It is not a de Polignac number, because 500785757825 - 2² = 500785757821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500785757821) 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 5 ways as a sum of consecutive naturals, for example, 10015715132 + ... + 10015715181.

It is an arithmetic number, because the mean of its divisors is an integer number (103495723289).

Almost surely, 2^500785757825 is an apocalyptic number.

It is an amenable number.

500785757825 is a deficient number, since it is larger than the sum of its proper divisors (120188581909).

500785757825 is a wasteful number, since it uses less digits than its factorization.

500785757825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20031430323 (or 20031430318 counting only the distinct ones).

The product of its (nonzero) digits is 27440000, while the sum is 59.

The spelling of 500785757825 in words is "five hundred billion, seven hundred eighty-five million, seven hundred fifty-seven thousand, eight hundred twenty-five".