55453430400 has 192 divisors, whose sum is σ = 192263512800. Its totient is φ = 14009241600.

The previous prime is 55453430371. The next prime is 55453430407. The reversal of 55453430400 is 403435455.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (55453430407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30390 + ... + 334410.

Almost surely, 2^55453430400 is an apocalyptic number.

55453430400 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 55453430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96131756400).

55453430400 is an abundant number, since it is smaller than the sum of its proper divisors (136810082400).

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

55453430400 is a wasteful number, since it uses less digits than its factorization.

55453430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304067 (or 304050 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 55453430400 its reverse (403435455), we get a palindrome (55856865855).

The spelling of 55453430400 in words is "fifty-five billion, four hundred fifty-three million, four hundred thirty thousand, four hundred".