85636524 has 12 divisors (see below), whose sum is σ = 199818584. Its totient is φ = 28545504.

The previous prime is 85636511. The next prime is 85636541. The reversal of 85636524 is 42563658.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×85636524² = 14667228485605152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568177 + ... + 3568200.

Almost surely, 2^85636524 is an apocalyptic number.

It is an amenable number.

85636524 is an abundant number, since it is smaller than the sum of its proper divisors (114182060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85636524 is a wasteful number, since it uses less digits than its factorization.

85636524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136384 (or 7136382 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 85636524 is about 9254.0004322455. Note that the first 3 decimals coincide. The cubic root of 85636524 is about 440.7777634992. Note that the first 4 decimals are identical.

The spelling of 85636524 in words is "eighty-five million, six hundred thirty-six thousand, five hundred twenty-four".