555044616 has 128 divisors (see below), whose sum is σ = 1788672000. Its totient is φ = 156188736.

The previous prime is 555044597. The next prime is 555044617. The reversal of 555044616 is 616440555.

555044616 is a `hidden beast` number, since 5 + 550 + 44 + 61 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (555044617) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 98565 + ... + 104043.

It is an arithmetic number, because the mean of its divisors is an integer number (13974000).

Almost surely, 2^555044616 is an apocalyptic number.

555044616 is a gapful number since it is divisible by the number (56) 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 555044616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894336000).

555044616 is an abundant number, since it is smaller than the sum of its proper divisors (1233627384).

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

555044616 is a wasteful number, since it uses less digits than its factorization.

555044616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568 (or 5558 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 555044616 is about 23559.3848816135. The cubic root of 555044616 is about 821.8185970845.

The spelling of 555044616 in words is "five hundred fifty-five million, forty-four thousand, six hundred sixteen".