55400200 has 96 divisors (see below), whose sum is σ = 138384000. Its totient is φ = 20563200.

The previous prime is 55400167. The next prime is 55400201. The reversal of 55400200 is 200455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55400201) 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, 231681 + ... + 231919.

It is an arithmetic number, because the mean of its divisors is an integer number (1441500).

Almost surely, 2^55400200 is an apocalyptic number.

55400200 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 55400200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69192000).

55400200 is an abundant number, since it is smaller than the sum of its proper divisors (82983800).

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

55400200 is a wasteful number, since it uses less digits than its factorization.

55400200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 55400200 is about 7443.1310615896. The cubic root of 55400200 is about 381.2154066973.

Adding to 55400200 its reverse (200455), we get a palindrome (55600655).

The spelling of 55400200 in words is "fifty-five million, four hundred thousand, two hundred".