555000144 has 80 divisors (see below), whose sum is σ = 1487910720. Its totient is φ = 178053120.

The previous prime is 555000133. The next prime is 555000157. The reversal of 555000144 is 441000555.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802839 + ... + 803529.

It is an arithmetic number, because the mean of its divisors is an integer number (18598884).

Almost surely, 2^555000144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555000144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743955360).

555000144 is an abundant number, since it is smaller than the sum of its proper divisors (932910576).

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

555000144 is a wasteful number, since it uses less digits than its factorization.

555000144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 555000144 is about 23558.4410350091. The cubic root of 555000144 is about 821.7966475620.

Adding to 555000144 its reverse (441000555), we get a palindrome (996000699).

The spelling of 555000144 in words is "five hundred fifty-five million, one hundred forty-four", and thus it is an aban number.