853563505 has 8 divisors (see below), whose sum is σ = 1078185600. Its totient is φ = 646911216.

The previous prime is 853563499. The next prime is 853563509. The reversal of 853563505 is 505365358.

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 853563505 - 2⁹ = 853562993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853563509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4492345 + ... + 4492534.

It is an arithmetic number, because the mean of its divisors is an integer number (134773200).

Almost surely, 2^853563505 is an apocalyptic number.

It is an amenable number.

853563505 is a deficient number, since it is larger than the sum of its proper divisors (224622095).

853563505 is a wasteful number, since it uses less digits than its factorization.

853563505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984903.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 853563505 is about 29215.8091621642. The cubic root of 853563505 is about 948.5901543704.

The spelling of 853563505 in words is "eight hundred fifty-three million, five hundred sixty-three thousand, five hundred five".