858127055 has 4 divisors (see below), whose sum is σ = 1029752472. Its totient is φ = 686501640.

The previous prime is 858127043. The next prime is 858127069. The reversal of 858127055 is 550721858.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550721858 = 2 ⋅275360929.

It is not a de Polignac number, because 858127055 - 2⁶ = 858126991 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85812701 + ... + 85812710.

It is an arithmetic number, because the mean of its divisors is an integer number (257438118).

Almost surely, 2^858127055 is an apocalyptic number.

858127055 is a deficient number, since it is larger than the sum of its proper divisors (171625417).

858127055 is a wasteful number, since it uses less digits than its factorization.

858127055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171625416.

The product of its (nonzero) digits is 112000, while the sum is 41.

The square root of 858127055 is about 29293.8057445597. The cubic root of 858127055 is about 950.2776861371.

The spelling of 858127055 in words is "eight hundred fifty-eight million, one hundred twenty-seven thousand, fifty-five".