555100040 has 64 divisors (see below), whose sum is σ = 1376118720. Its totient is φ = 199840000.

The previous prime is 555100003. The next prime is 555100079. The reversal of 555100040 is 40001555.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 555099985 and 555100021.

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 15 ways as a sum of consecutive naturals, for example, 38195 + ... + 50685.

It is an arithmetic number, because the mean of its divisors is an integer number (21501855).

Almost surely, 2^555100040 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 555100040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688059360).

555100040 is an abundant number, since it is smaller than the sum of its proper divisors (821018680).

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

555100040 is a wasteful number, since it uses less digits than its factorization.

555100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12614 (or 12610 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 555100040 is about 23560.5611138614. The cubic root of 555100040 is about 821.8459504158.

Adding to 555100040 its reverse (40001555), we get a palindrome (595101595).

The spelling of 555100040 in words is "five hundred fifty-five million, one hundred thousand, forty".