85851055 has 4 divisors (see below), whose sum is σ = 103021272. Its totient is φ = 68680840.

The previous prime is 85851041. The next prime is 85851079. The reversal of 85851055 is 55015858.

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

It is not a de Polignac number, because 85851055 - 2⁵ = 85851023 is a prime.

It is a super-2 number, since 2×85851055² = 14740807289226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8585101 + ... + 8585110.

It is an arithmetic number, because the mean of its divisors is an integer number (25755318).

Almost surely, 2^85851055 is an apocalyptic number.

85851055 is a deficient number, since it is larger than the sum of its proper divisors (17170217).

85851055 is a wasteful number, since it uses less digits than its factorization.

85851055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17170216.

The product of its (nonzero) digits is 40000, while the sum is 37.

The square root of 85851055 is about 9265.5844392030. The cubic root of 85851055 is about 441.1455257476.

The spelling of 85851055 in words is "eighty-five million, eight hundred fifty-one thousand, fifty-five".