853072505 has 8 divisors (see below), whose sum is σ = 1024892232. Its totient is φ = 681654528.

The previous prime is 853072489. The next prime is 853072511. The reversal of 853072505 is 505270358.

It can be written as a sum of positive squares in 4 ways, for example, as 29899024 + 823173481 = 5468^2 + 28691^2 .

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 853072505 - 2⁴ = 853072489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 95744 + ... + 104273.

It is an arithmetic number, because the mean of its divisors is an integer number (128111529).

Almost surely, 2^853072505 is an apocalyptic number.

It is an amenable number.

853072505 is a deficient number, since it is larger than the sum of its proper divisors (171819727).

853072505 is a wasteful number, since it uses less digits than its factorization.

853072505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200875.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 853072505 is about 29207.4049686034. The cubic root of 853072505 is about 948.4082319169.

The spelling of 853072505 in words is "eight hundred fifty-three million, seventy-two thousand, five hundred five".