55441800 has 96 divisors (see below), whose sum is σ = 190984800. Its totient is φ = 14783040.

The previous prime is 55441787. The next prime is 55441801. The reversal of 55441800 is 814455.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55441801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267 + ... + 10533.

It is an arithmetic number, because the mean of its divisors is an integer number (1989425).

Almost surely, 2^55441800 is an apocalyptic number.

55441800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55441800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95492400).

55441800 is an abundant number, since it is smaller than the sum of its proper divisors (135543000).

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

55441800 is a wasteful number, since it uses less digits than its factorization.

55441800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292 (or 10277 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 55441800 is about 7445.9250600580. The cubic root of 55441800 is about 381.3108010170.

The spelling of 55441800 in words is "fifty-five million, four hundred forty-one thousand, eight hundred".