55453030400 has 144 divisors (see below), whose sum is σ = 139157109000. Its totient is φ = 21912289280.

The previous prime is 55453030357. The next prime is 55453030489. The reversal of 55453030400 is 403035455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4243076 + ... + 4256124.

Almost surely, 2^55453030400 is an apocalyptic number.

55453030400 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 55453030400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69578554500).

55453030400 is an abundant number, since it is smaller than the sum of its proper divisors (83704078600).

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

55453030400 is a wasteful number, since it uses less digits than its factorization.

55453030400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164 (or 13139 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

Adding to 55453030400 its reverse (403035455), we get a palindrome (55856065855).

The spelling of 55453030400 in words is "fifty-five billion, four hundred fifty-three million, thirty thousand, four hundred".