55053400 has 48 divisors (see below), whose sum is σ = 129835440. Its totient is φ = 21705600.

The previous prime is 55053391. The next prime is 55053433. The reversal of 55053400 is 435055.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12262 + ... + 16138.

It is an arithmetic number, because the mean of its divisors is an integer number (2704905).

Almost surely, 2^55053400 is an apocalyptic number.

55053400 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 55053400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64917720).

55053400 is an abundant number, since it is smaller than the sum of its proper divisors (74782040).

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

55053400 is a wasteful number, since it uses less digits than its factorization.

55053400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 55053400 is about 7419.7978409118. The cubic root of 55053400 is about 380.4182836358.

Adding to 55053400 its reverse (435055), we get a palindrome (55488455).

The spelling of 55053400 in words is "fifty-five million, fifty-three thousand, four hundred".