85801573 has 8 divisors (see below), whose sum is σ = 100802016. Its totient is φ = 72001200.

The previous prime is 85801531. The next prime is 85801579. The reversal of 85801573 is 37510858.

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

It is a cyclic number.

It is not a de Polignac number, because 85801573 - 2²⁵ = 52247141 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 (85801579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299863 + ... + 300148.

It is an arithmetic number, because the mean of its divisors is an integer number (12600252).

Almost surely, 2^85801573 is an apocalyptic number.

It is an amenable number.

85801573 is a deficient number, since it is larger than the sum of its proper divisors (15000443).

85801573 is a wasteful number, since it uses less digits than its factorization.

85801573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600035.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 85801573 is about 9262.9138504037. The cubic root of 85801573 is about 441.0607550632.

It can be divided in two parts, 8580 and 1573, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 85801573 in words is "eighty-five million, eight hundred one thousand, five hundred seventy-three".