55450401100 has 108 divisors (see below), whose sum is σ = 128020399920. Its totient is φ = 20843033600.

The previous prime is 55450401053. The next prime is 55450401119. The reversal of 55450401100 is 110405455.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27193881 + ... + 27195919.

Almost surely, 2^55450401100 is an apocalyptic number.

55450401100 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 55450401100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64010199960).

55450401100 is an abundant number, since it is smaller than the sum of its proper divisors (72569998820).

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

55450401100 is a wasteful number, since it uses less digits than its factorization.

55450401100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 55450401100 its reverse (110405455), we get a palindrome (55560806555).

The spelling of 55450401100 in words is "fifty-five billion, four hundred fifty million, four hundred one thousand, one hundred".