55441020 has 96 divisors (see below), whose sum is σ = 164376576. Its totient is φ = 13939200.

The previous prime is 55441013. The next prime is 55441039. The reversal of 55441020 is 2014455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75897 + ... + 76623.

It is an arithmetic number, because the mean of its divisors is an integer number (1712256).

Almost surely, 2^55441020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55441020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82188288).

55441020 is an abundant number, since it is smaller than the sum of its proper divisors (108935556).

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

55441020 is a wasteful number, since it uses less digits than its factorization.

55441020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55441020 is about 7445.8726822314. The cubic root of 55441020 is about 381.3090128126.

Adding to 55441020 its reverse (2014455), we get a palindrome (57455475).

The spelling of 55441020 in words is "fifty-five million, four hundred forty-one thousand, twenty".