8205725005 has 8 divisors (see below), whose sum is σ = 9848430072. Its totient is φ = 6563539968.

The previous prime is 8205724993. The next prime is 8205725039. The reversal of 8205725005 is 5005275028.

It can be written as a sum of positive squares in 4 ways, for example, as 122456356 + 8083268649 = 11066^2 + 89907^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8205725005 - 2²⁹ = 7668854093 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 94404 + ... + 159133.

It is an arithmetic number, because the mean of its divisors is an integer number (1231053759).

Almost surely, 2^8205725005 is an apocalyptic number.

It is an amenable number.

8205725005 is a deficient number, since it is larger than the sum of its proper divisors (1642705067).

8205725005 is a wasteful number, since it uses less digits than its factorization.

8205725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260015.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 8205725005 is about 90585.4569177636. The cubic root of 8205725005 is about 2016.9988604540.

The spelling of 8205725005 in words is "eight billion, two hundred five million, seven hundred twenty-five thousand, five".