85022851 has 4 divisors (see below), whose sum is σ = 85190400. Its totient is φ = 84855304.

The previous prime is 85022813. The next prime is 85022893. The reversal of 85022851 is 15822058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85022851 - 2⁹ = 85022339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85022351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83011 + ... + 84028.

It is an arithmetic number, because the mean of its divisors is an integer number (21297600).

Almost surely, 2^85022851 is an apocalyptic number.

85022851 is a deficient number, since it is larger than the sum of its proper divisors (167549).

85022851 is a wasteful number, since it uses less digits than its factorization.

85022851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167548.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 85022851 is about 9220.7836434871. The cubic root of 85022851 is about 439.7223644522.

The spelling of 85022851 in words is "eighty-five million, twenty-two thousand, eight hundred fifty-one".