85003653 has 16 divisors (see below), whose sum is σ = 135161856. Its totient is φ = 46461360.

The previous prime is 85003649. The next prime is 85003687. The reversal of 85003653 is 35630058.

It is not a de Polignac number, because 85003653 - 2² = 85003649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85003653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85003603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87513 + ... + 88478.

It is an arithmetic number, because the mean of its divisors is an integer number (8447616).

Almost surely, 2^85003653 is an apocalyptic number.

It is an amenable number.

85003653 is a deficient number, since it is larger than the sum of its proper divisors (50158203).

85003653 is a wasteful number, since it uses less digits than its factorization.

85003653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176024.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 85003653 is about 9219.7425669050. The cubic root of 85003653 is about 439.6892657996.

The spelling of 85003653 in words is "eighty-five million, three thousand, six hundred fifty-three".