8555384423 has 4 divisors (see below), whose sum is σ = 8607871608. Its totient is φ = 8502897240.

The previous prime is 8555384413. The next prime is 8555384491. The reversal of 8555384423 is 3244835558.

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 8555384423 - 2²⁰ = 8554335847 is a prime.

It is a super-2 number, since 2×8555384423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8555384413) 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, 26243348 + ... + 26243673.

It is an arithmetic number, because the mean of its divisors is an integer number (2151967902).

Almost surely, 2^8555384423 is an apocalyptic number.

8555384423 is a deficient number, since it is larger than the sum of its proper divisors (52487185).

8555384423 is a wasteful number, since it uses less digits than its factorization.

8555384423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52487184.

The product of its digits is 2304000, while the sum is 47.

The square root of 8555384423 is about 92495.3210870690. The cubic root of 8555384423 is about 2045.2505096599.

The spelling of 8555384423 in words is "eight billion, five hundred fifty-five million, three hundred eighty-four thousand, four hundred twenty-three".