85851259 has 4 divisors (see below), whose sum is σ = 92455216. Its totient is φ = 79247304.

The previous prime is 85851257. The next prime is 85851277. The reversal of 85851259 is 95215858.

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 85851259 - 2¹ = 85851257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85851251) 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, 3301959 + ... + 3301984.

It is an arithmetic number, because the mean of its divisors is an integer number (23113804).

Almost surely, 2^85851259 is an apocalyptic number.

85851259 is a deficient number, since it is larger than the sum of its proper divisors (6603957).

85851259 is a wasteful number, since it uses less digits than its factorization.

85851259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603956.

The product of its digits is 144000, while the sum is 43.

The square root of 85851259 is about 9265.5954476763. The cubic root of 85851259 is about 441.1458751652.

The spelling of 85851259 in words is "eighty-five million, eight hundred fifty-one thousand, two hundred fifty-nine".