85528753 has 4 divisors (see below), whose sum is σ = 85548148. Its totient is φ = 85509360.

The previous prime is 85528741. The next prime is 85528757. The reversal of 85528753 is 35782558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 48902049 = 6052^2 + 6993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85528753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85528757) 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, 475 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (21387037).

Almost surely, 2^85528753 is an apocalyptic number.

It is an amenable number.

85528753 is a deficient number, since it is larger than the sum of its proper divisors (19395).

85528753 is a wasteful number, since it uses less digits than its factorization.

85528753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19394.

The product of its digits is 336000, while the sum is 43.

The square root of 85528753 is about 9248.1756579338. The cubic root of 85528753 is about 440.5927840101.

The spelling of 85528753 in words is "eighty-five million, five hundred twenty-eight thousand, seven hundred fifty-three".