5505561109 has 4 divisors (see below), whose sum is σ = 5508988704. Its totient is φ = 5502133516.

The previous prime is 5505561101. The next prime is 5505561119. The reversal of 5505561109 is 9011655055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5505561109 - 2³ = 5505561101 is a prime.

It is a super-2 number, since 2×5505561109² = 60622406249866619762, which 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 (5505561101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711387 + ... + 1714600.

It is an arithmetic number, because the mean of its divisors is an integer number (1377247176).

Almost surely, 2^5505561109 is an apocalyptic number.

It is an amenable number.

5505561109 is a deficient number, since it is larger than the sum of its proper divisors (3427595).

5505561109 is a wasteful number, since it uses less digits than its factorization.

5505561109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427594.

The product of its (nonzero) digits is 33750, while the sum is 37.

The square root of 5505561109 is about 74199.4683875835. The cubic root of 5505561109 is about 1765.7688961081.

The spelling of 5505561109 in words is "five billion, five hundred five million, five hundred sixty-one thousand, one hundred nine".