85405532 has 24 divisors (see below), whose sum is σ = 164169600. Its totient is φ = 38695536.

The previous prime is 85405519. The next prime is 85405559. The reversal of 85405532 is 23550458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22682 + ... + 26177.

It is an arithmetic number, because the mean of its divisors is an integer number (6840400).

Almost surely, 2^85405532 is an apocalyptic number.

It is an amenable number.

85405532 is a deficient number, since it is larger than the sum of its proper divisors (78764068).

85405532 is a wasteful number, since it uses less digits than its factorization.

85405532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48905 (or 48903 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 85405532 is about 9241.5113482590. The cubic root of 85405532 is about 440.3810954479.

The spelling of 85405532 in words is "eighty-five million, four hundred five thousand, five hundred thirty-two".