5556061111 has 6 divisors (see below), whose sum is σ = 5863876512. Its totient is φ = 5263636500.

The previous prime is 5556061099. The next prime is 5556061139. The reversal of 5556061111 is 1111606555.

It is not a de Polignac number, because 5556061111 - 2¹⁹ = 5555536823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5556061141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7695015 + ... + 7695736.

It is an arithmetic number, because the mean of its divisors is an integer number (977312752).

Almost surely, 2^5556061111 is an apocalyptic number.

5556061111 is a deficient number, since it is larger than the sum of its proper divisors (307815401).

5556061111 is a wasteful number, since it uses less digits than its factorization.

5556061111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15390789 (or 15390770 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 5556061111 is about 74538.9905418634. The cubic root of 5556061111 is about 1771.1513369574.

Adding to 5556061111 its reverse (1111606555), we get a palindrome (6667667666).

The spelling of 5556061111 in words is "five billion, five hundred fifty-six million, sixty-one thousand, one hundred eleven".