85573533 has 16 divisors (see below), whose sum is σ = 115980800. Its totient is φ = 56115504.

The previous prime is 85573517. The next prime is 85573559. The reversal of 85573533 is 33537558.

It is not a de Polignac number, because 85573533 - 2⁴ = 85573517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85573491 and 85573500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85573513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49518 + ... + 51216.

It is an arithmetic number, because the mean of its divisors is an integer number (7248800).

Almost surely, 2^85573533 is an apocalyptic number.

It is an amenable number.

85573533 is a deficient number, since it is larger than the sum of its proper divisors (30407267).

85573533 is a wasteful number, since it uses less digits than its factorization.

85573533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968.

The product of its digits is 189000, while the sum is 39.

The square root of 85573533 is about 9250.5963591544. The cubic root of 85573533 is about 440.6696638192.

It can be divided in two parts, 8557 and 3533, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 85573533 in words is "eighty-five million, five hundred seventy-three thousand, five hundred thirty-three".