8549556011 has 4 divisors (see below), whose sum is σ = 8694463800. Its totient is φ = 8404648224.

The previous prime is 8549555953. The next prime is 8549556023. The reversal of 8549556011 is 1106559458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1106559458 = 2 ⋅553279729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8549556011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8549550011) 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, 72453806 + ... + 72453923.

It is an arithmetic number, because the mean of its divisors is an integer number (2173615950).

Almost surely, 2^8549556011 is an apocalyptic number.

8549556011 is a deficient number, since it is larger than the sum of its proper divisors (144907789).

8549556011 is a wasteful number, since it uses less digits than its factorization.

8549556011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144907788.

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 8549556011 is about 92463.8091958146. The cubic root of 8549556011 is about 2044.7859573563.

The spelling of 8549556011 in words is "eight billion, five hundred forty-nine million, five hundred fifty-six thousand, eleven".