85521242 has 8 divisors (see below), whose sum is σ = 135033600. Its totient is φ = 40510044.

The previous prime is 85521239. The next prime is 85521251. The reversal of 85521242 is 24212558.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1125242 + ... + 1125317.

It is an arithmetic number, because the mean of its divisors is an integer number (16879200).

Almost surely, 2^85521242 is an apocalyptic number.

85521242 is a deficient number, since it is larger than the sum of its proper divisors (49512358).

85521242 is a wasteful number, since it uses less digits than its factorization.

85521242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250580.

The product of its digits is 6400, while the sum is 29.

The square root of 85521242 is about 9247.7695689285. The cubic root of 85521242 is about 440.5798862451.

The spelling of 85521242 in words is "eighty-five million, five hundred twenty-one thousand, two hundred forty-two".