85085553193 has 4 divisors (see below), whose sum is σ = 86895884160. Its totient is φ = 83275222228.

The previous prime is 85085553187. The next prime is 85085553199. The reversal of 85085553193 is 39135558058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (85085553187) and next prime (85085553199).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85085553193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85085553193.

It is not an unprimeable number, because it can be changed into a prime (85085553199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905165413 + ... + 905165506.

It is an arithmetic number, because the mean of its divisors is an integer number (21723971040).

Almost surely, 2^85085553193 is an apocalyptic number.

It is an amenable number.

85085553193 is a deficient number, since it is larger than the sum of its proper divisors (1810330967).

85085553193 is a wasteful number, since it uses less digits than its factorization.

85085553193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810330966.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 85085553193 in words is "eighty-five billion, eighty-five million, five hundred fifty-three thousand, one hundred ninety-three".