85537533 has 4 divisors (see below), whose sum is σ = 114050048. Its totient is φ = 57025020.

The previous prime is 85537519. The next prime is 85537583. The reversal of 85537533 is 33573558.

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 a de Polignac number, because none of the positive numbers 2^k-85537533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85537491 and 85537500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85537583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14256253 + ... + 14256258.

It is an arithmetic number, because the mean of its divisors is an integer number (28512512).

Almost surely, 2^85537533 is an apocalyptic number.

It is an amenable number.

85537533 is a deficient number, since it is larger than the sum of its proper divisors (28512515).

85537533 is a wasteful number, since it uses less digits than its factorization.

85537533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28512514.

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

The square root of 85537533 is about 9248.6503339677. The cubic root of 85537533 is about 440.6078599238.

The spelling of 85537533 in words is "eighty-five million, five hundred thirty-seven thousand, five hundred thirty-three".