8500252505 has 4 divisors (see below), whose sum is σ = 10200303012. Its totient is φ = 6800202000.

The previous prime is 8500252499. The next prime is 8500252567. The reversal of 8500252505 is 5052520058.

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 6530579344 + 1969673161 = 80812^2 + 44381^2 .

It is not a de Polignac number, because 8500252505 - 2⁸ = 8500252249 is a prime.

It is a Duffinian 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, 850025246 + ... + 850025255.

It is an arithmetic number, because the mean of its divisors is an integer number (2550075753).

Almost surely, 2^8500252505 is an apocalyptic number.

It is an amenable number.

8500252505 is a deficient number, since it is larger than the sum of its proper divisors (1700050507).

8500252505 is a wasteful number, since it uses less digits than its factorization.

8500252505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700050506.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 8500252505 is about 92196.8139633903. The cubic root of 8500252505 is about 2040.8477593531.

The spelling of 8500252505 in words is "eight billion, five hundred million, two hundred fifty-two thousand, five hundred five".