555004020 has 96 divisors (see below), whose sum is σ = 1584253440. Its totient is φ = 145152000.

The previous prime is 555004013. The next prime is 555004031. The reversal of 555004020 is 20400555.

It is a congruent number.

It is an unprimeable number.

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, 738645 + ... + 739395.

It is an arithmetic number, because the mean of its divisors is an integer number (16502640).

Almost surely, 2^555004020 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 555004020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792126720).

555004020 is an abundant number, since it is smaller than the sum of its proper divisors (1029249420).

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

555004020 is a wasteful number, since it uses less digits than its factorization.

555004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 555004020 is about 23558.5232983734. The cubic root of 555004020 is about 821.7985606404.

Adding to 555004020 its reverse (20400555), we get a palindrome (575404575).

The spelling of 555004020 in words is "five hundred fifty-five million, four thousand, twenty".