85253647 has 4 divisors (see below), whose sum is σ = 85365280. Its totient is φ = 85142016.

The previous prime is 85253639. The next prime is 85253671. The reversal of 85253647 is 74635258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85253647 - 2³ = 85253639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85253677) 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, 54663 + ... + 56200.

It is an arithmetic number, because the mean of its divisors is an integer number (21341320).

Almost surely, 2^85253647 is an apocalyptic number.

85253647 is a deficient number, since it is larger than the sum of its proper divisors (111633).

85253647 is a wasteful number, since it uses less digits than its factorization.

85253647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111632.

The product of its digits is 201600, while the sum is 40.

The square root of 85253647 is about 9233.2901503202. The cubic root of 85253647 is about 440.1198829672.

The spelling of 85253647 in words is "eighty-five million, two hundred fifty-three thousand, six hundred forty-seven".