55144110 has 128 divisors (see below), whose sum is σ = 161740800. Its totient is φ = 12004608.

The previous prime is 55144069. The next prime is 55144123. The reversal of 55144110 is 1144155.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236554 + ... + 236786.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^55144110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55144110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80870400).

55144110 is an abundant number, since it is smaller than the sum of its proper divisors (106596690).

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

55144110 is a wasteful number, since it uses less digits than its factorization.

55144110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 55144110 is about 7425.9080252855. The cubic root of 55144110 is about 380.6271039651.

Adding to 55144110 its reverse (1144155), we get a palindrome (56288265).

The spelling of 55144110 in words is "fifty-five million, one hundred forty-four thousand, one hundred ten".