85222547 has 8 divisors (see below), whose sum is σ = 90331200. Its totient is φ = 80124544.

The previous prime is 85222537. The next prime is 85222549. The reversal of 85222547 is 74522258.

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

It is a cyclic number.

It is not a de Polignac number, because 85222547 - 2⁴ = 85222531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85222549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18854 + ... + 22932.

It is an arithmetic number, because the mean of its divisors is an integer number (11291400).

Almost surely, 2^85222547 is an apocalyptic number.

85222547 is a deficient number, since it is larger than the sum of its proper divisors (5108653).

85222547 is a wasteful number, since it uses less digits than its factorization.

85222547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its digits is 44800, while the sum is 35.

The square root of 85222547 is about 9231.6058733029. The cubic root of 85222547 is about 440.0663587932.

The spelling of 85222547 in words is "eighty-five million, two hundred twenty-two thousand, five hundred forty-seven".