55430340000 has 480 divisors, whose sum is σ = 208992301056. Its totient is φ = 12597120000.

The previous prime is 55430339971. The next prime is 55430340013. The reversal of 55430340000 is 4303455.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 113819757 + ... + 113820243.

Almost surely, 2^55430340000 is an apocalyptic number.

55430340000 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 55430340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104496150528).

55430340000 is an abundant number, since it is smaller than the sum of its proper divisors (153561961056).

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

55430340000 is a wasteful number, since it uses less digits than its factorization.

55430340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 55430340000 its reverse (4303455), we get a palindrome (55434643455).

The spelling of 55430340000 in words is "fifty-five billion, four hundred thirty million, three hundred forty thousand".