85131055 has 8 divisors (see below), whose sum is σ = 102207744. Its totient is φ = 68071200.

The previous prime is 85131029. The next prime is 85131061. The reversal of 85131055 is 55013158.

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

It is not a de Polignac number, because 85131055 - 2⁵ = 85131023 is a prime.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14445 + ... + 19465.

It is an arithmetic number, because the mean of its divisors is an integer number (12775968).

Almost surely, 2^85131055 is an apocalyptic number.

85131055 is a deficient number, since it is larger than the sum of its proper divisors (17076689).

85131055 is a wasteful number, since it uses less digits than its factorization.

85131055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8417.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 85131055 is about 9226.6491750798. The cubic root of 85131055 is about 439.9088223607.

The spelling of 85131055 in words is "eighty-five million, one hundred thirty-one thousand, fifty-five".