85135532 has 24 divisors (see below), whose sum is σ = 156310560. Its totient is φ = 40517120.

The previous prime is 85135441. The next prime is 85135537. The reversal of 85135532 is 23553158.

It is not an unprimeable number, because it can be changed into a prime (85135537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3068 + ... + 13404.

It is an arithmetic number, because the mean of its divisors is an integer number (6512940).

Almost surely, 2^85135532 is an apocalyptic number.

It is an amenable number.

85135532 is a deficient number, since it is larger than the sum of its proper divisors (71175028).

85135532 is a wasteful number, since it uses less digits than its factorization.

85135532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441 (or 10439 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 85135532 is about 9226.8917843443. The cubic root of 85135532 is about 439.9165337546.

The spelling of 85135532 in words is "eighty-five million, one hundred thirty-five thousand, five hundred thirty-two".