20550235110 has 128 divisors (see below), whose sum is σ = 51803504640. Its totient is φ = 5210956800.

The previous prime is 20550235081. The next prime is 20550235117. The reversal of 20550235110 is 1153205502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550235117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28581331 + ... + 28582049.

It is an arithmetic number, because the mean of its divisors is an integer number (404714880).

Almost surely, 2^20550235110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20550235110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25901752320).

20550235110 is an abundant number, since it is smaller than the sum of its proper divisors (31253269530).

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

20550235110 is a wasteful number, since it uses less digits than its factorization.

20550235110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 1500, while the sum is 24.

The spelling of 20550235110 in words is "twenty billion, five hundred fifty million, two hundred thirty-five thousand, one hundred ten".