85306503 has 8 divisors (see below), whose sum is σ = 113954416. Its totient is φ = 56764800.

The previous prime is 85306489. The next prime is 85306531. The reversal of 85306503 is 30560358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85306503 - 2¹² = 85302407 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 (85305503) 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, 24658 + ... + 27903.

It is an arithmetic number, because the mean of its divisors is an integer number (14244302).

Almost surely, 2^85306503 is an apocalyptic number.

85306503 is a deficient number, since it is larger than the sum of its proper divisors (28647913).

85306503 is a wasteful number, since it uses less digits than its factorization.

85306503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53105.

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

The square root of 85306503 is about 9236.1519584727. The cubic root of 85306503 is about 440.2108201155.

The spelling of 85306503 in words is "eighty-five million, three hundred six thousand, five hundred three".