55010551109 has 4 divisors (see below), whose sum is σ = 55224600204. Its totient is φ = 54796502016.

The previous prime is 55010551091. The next prime is 55010551121. The reversal of 55010551109 is 90115501055.

55010551109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38189758084 + 16820793025 = 195422^2 + 129695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55010551109 is a prime.

It is a super-2 number, since 2×55010551109² (a number of 22 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 (55010551129) 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, 107024162 + ... + 107024675.

It is an arithmetic number, because the mean of its divisors is an integer number (13806150051).

Almost surely, 2^55010551109 is an apocalyptic number.

It is an amenable number.

55010551109 is a deficient number, since it is larger than the sum of its proper divisors (214049095).

55010551109 is a wasteful number, since it uses less digits than its factorization.

55010551109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214049094.

The product of its (nonzero) digits is 5625, while the sum is 32.

The spelling of 55010551109 in words is "fifty-five billion, ten million, five hundred fifty-one thousand, one hundred nine".