855085653 has 14 divisors (see below), whose sum is σ = 1282043094. Its totient is φ = 570056616.

The previous prime is 855085631. The next prime is 855085661. The reversal of 855085653 is 356580558.

855085653 is a `hidden beast` number, since 85 + 5 + 0 + 8 + 565 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 609003684 + 246081969 = 24678^2 + 15687^2 .

It is not a de Polignac number, because 855085653 - 2⁹ = 855085141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 855085599 and 855085608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855085613) 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 13 ways as a sum of consecutive naturals, for example, 585750 + ... + 587207.

Almost surely, 2^855085653 is an apocalyptic number.

It is an amenable number.

855085653 is a deficient number, since it is larger than the sum of its proper divisors (426957441).

855085653 is an equidigital number, since it uses as much as digits as its factorization.

855085653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172975 (or 1172960 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The square root of 855085653 is about 29241.8476331438. The cubic root of 855085653 is about 949.1536887588.

The spelling of 855085653 in words is "eight hundred fifty-five million, eighty-five thousand, six hundred fifty-three".