85575539 has 4 divisors (see below), whose sum is σ = 97800624. Its totient is φ = 73350456.

The previous prime is 85575527. The next prime is 85575557. The reversal of 85575539 is 93557558.

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

It is a cyclic number.

It is not a de Polignac number, because 85575539 - 2²⁰ = 84526963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85575493 and 85575502.

It is not an unprimeable number, because it can be changed into a prime (85575559) 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, 6112532 + ... + 6112545.

It is an arithmetic number, because the mean of its divisors is an integer number (24450156).

Almost surely, 2^85575539 is an apocalyptic number.

85575539 is a deficient number, since it is larger than the sum of its proper divisors (12225085).

85575539 is a wasteful number, since it uses less digits than its factorization.

85575539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12225084.

The product of its digits is 945000, while the sum is 47.

The square root of 85575539 is about 9250.7047839611. The cubic root of 85575539 is about 440.6731071597.

The spelling of 85575539 in words is "eighty-five million, five hundred seventy-five thousand, five hundred thirty-nine".