555430440000 has 280 divisors, whose sum is σ = 1841640736320. Its totient is φ = 147690752000.

The previous prime is 555430439999. The next prime is 555430440001. The reversal of 555430440000 is 44034555.

It is an interprime number because it is at equal distance from previous prime (555430439999) and next prime (555430440001).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 555430440000.

It is not an unprimeable number, because it can be changed into a prime (555430440001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43073554 + ... + 43086446.

It is an arithmetic number, because the mean of its divisors is an integer number (6577288344).

Almost surely, 2^555430440000 is an apocalyptic number.

555430440000 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 555430440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920820368160).

555430440000 is an abundant number, since it is smaller than the sum of its proper divisors (1286210296320).

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

555430440000 is a wasteful number, since it uses less digits than its factorization.

555430440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287 (or 13262 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 555430440000 its reverse (44034555), we get a palindrome (555474474555).

The spelling of 555430440000 in words is "five hundred fifty-five billion, four hundred thirty million, four hundred forty thousand".