85609533 has 4 divisors (see below), whose sum is σ = 114146048. Its totient is φ = 57073020.

The previous prime is 85609493. The next prime is 85609541. The reversal of 85609533 is 33590658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85609533 - 2⁹ = 85609021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85609491 and 85609500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85609133) 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 3 ways as a sum of consecutive naturals, for example, 14268253 + ... + 14268258.

It is an arithmetic number, because the mean of its divisors is an integer number (28536512).

Almost surely, 2^85609533 is an apocalyptic number.

It is an amenable number.

85609533 is a deficient number, since it is larger than the sum of its proper divisors (28536515).

85609533 is a wasteful number, since it uses less digits than its factorization.

85609533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28536514.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 85609533 is about 9252.5419750466. The cubic root of 85609533 is about 440.7314503834.

The spelling of 85609533 in words is "eighty-five million, six hundred nine thousand, five hundred thirty-three".