85231554 has 8 divisors (see below), whose sum is σ = 170463120. Its totient is φ = 28410516.

The previous prime is 85231483. The next prime is 85231561. The reversal of 85231554 is 45513258.

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

85231554 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7102624 + ... + 7102635.

It is an arithmetic number, because the mean of its divisors is an integer number (21307890).

Almost surely, 2^85231554 is an apocalyptic number.

85231554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85231554 is a wasteful number, since it uses less digits than its factorization.

85231554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205264.

The product of its digits is 24000, while the sum is 33.

The square root of 85231554 is about 9232.0936953651. The cubic root of 85231554 is about 440.0818614906.

The spelling of 85231554 in words is "eighty-five million, two hundred thirty-one thousand, five hundred fifty-four".