855427592559 has 4 divisors (see below), whose sum is σ = 1140570123416. Its totient is φ = 570285061704.

The previous prime is 855427592497. The next prime is 855427592563. The reversal of 855427592559 is 955295724558.

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

It is not a de Polignac number, because 855427592559 - 2²⁵ = 855394038127 is a prime.

It is a super-2 number, since 2×855427592559² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855427592559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855427592959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142571265424 + ... + 142571265429.

It is an arithmetic number, because the mean of its divisors is an integer number (285142530854).

Almost surely, 2^855427592559 is an apocalyptic number.

855427592559 is a deficient number, since it is larger than the sum of its proper divisors (285142530857).

855427592559 is a wasteful number, since it uses less digits than its factorization.

855427592559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285142530856.

The product of its digits is 226800000, while the sum is 66.

The spelling of 855427592559 in words is "eight hundred fifty-five billion, four hundred twenty-seven million, five hundred ninety-two thousand, five hundred fifty-nine".