5556556554 has 16 divisors (see below), whose sum is σ = 11114288640. Its totient is φ = 1851989600.

The previous prime is 5556556543. The next prime is 5556556583. The reversal of 5556556554 is 4556556555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5556556497 and 5556556506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19927 + ... + 107285.

It is an arithmetic number, because the mean of its divisors is an integer number (694643040).

Almost surely, 2^5556556554 is an apocalyptic number.

5556556554 is an abundant number, since it is smaller than the sum of its proper divisors (5557732086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5556556554 is a wasteful number, since it uses less digits than its factorization.

5556556554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97965.

The product of its digits is 11250000, while the sum is 51.

The square root of 5556556554 is about 74542.3138492494. The cubic root of 5556556554 is about 1771.2039808738.

Subtracting from 5556556554 its reverse (4556556555), we obtain a palindrome (999999999).

The spelling of 5556556554 in words is "five billion, five hundred fifty-six million, five hundred fifty-six thousand, five hundred fifty-four".