85221532 has 24 divisors (see below), whose sum is σ = 169771392. Its totient is φ = 37052400.

The previous prime is 85221529. The next prime is 85221553. The reversal of 85221532 is 23512258.

It is a self number, because there is not a number n which added to its sum of digits gives 85221532.

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, 41094 + ... + 43117.

It is an arithmetic number, because the mean of its divisors is an integer number (7073808).

Almost surely, 2^85221532 is an apocalyptic number.

It is an amenable number.

85221532 is a deficient number, since it is larger than the sum of its proper divisors (84549860).

85221532 is a wasteful number, since it uses less digits than its factorization.

85221532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84249 (or 84247 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 85221532 is about 9231.5508989552. The cubic root of 85221532 is about 440.0646117238.

The spelling of 85221532 in words is "eighty-five million, two hundred twenty-one thousand, five hundred thirty-two".