555030144 has 320 divisors, whose sum is σ = 1812792960. Its totient is φ = 167878656.

The previous prime is 555030139. The next prime is 555030149. The reversal of 555030144 is 441030555.

It is an interprime number because it is at equal distance from previous prime (555030139) and next prime (555030149).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555030149) 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, 8283999 + ... + 8284065.

It is an arithmetic number, because the mean of its divisors is an integer number (5664978).

Almost surely, 2^555030144 is an apocalyptic number.

555030144 is a gapful number since it is divisible by the number (54) 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 555030144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906396480).

555030144 is an abundant number, since it is smaller than the sum of its proper divisors (1257762816).

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

555030144 is a wasteful number, since it uses less digits than its factorization.

555030144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 555030144 is about 23559.0777408624. The cubic root of 555030144 is about 821.8114544382.

Adding to 555030144 its reverse (441030555), we get a palindrome (996060699).

The spelling of 555030144 in words is "five hundred fifty-five million, thirty thousand, one hundred forty-four".