55121000110 has 32 divisors (see below), whose sum is σ = 110279830752. Its totient is φ = 19665809280.

The previous prime is 55121000071. The next prime is 55121000119. The reversal of 55121000110 is 1100012155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55121000119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4721529 + ... + 4733188.

It is an arithmetic number, because the mean of its divisors is an integer number (3446244711).

Almost surely, 2^55121000110 is an apocalyptic number.

55121000110 is an abundant number, since it is smaller than the sum of its proper divisors (55158830642).

55121000110 is a wasteful number, since it uses less digits than its factorization.

55121000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454788.

The product of its (nonzero) digits is 50, while the sum is 16.

Adding to 55121000110 its reverse (1100012155), we get a palindrome (56221012265).

The spelling of 55121000110 in words is "fifty-five billion, one hundred twenty-one million, one hundred ten", and thus it is an aban number.