555555005000 has 80 divisors (see below), whose sum is σ = 1302497176860. Its totient is φ = 222080000000.

The previous prime is 555555004967. The next prime is 555555005003. The reversal of 555555005000 is 500555555.

It can be written as a sum of positive squares in 10 ways, for example, as 15544603684 + 540010401316 = 124678^2 + 734854^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (555555005003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7970300 + ... + 8039700.

Almost surely, 2^555555005000 is an apocalyptic number.

555555005000 is a gapful number since it is divisible by the number (50) 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 555555005000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651248588430).

555555005000 is an abundant number, since it is smaller than the sum of its proper divisors (746942171860).

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

555555005000 is a wasteful number, since it uses less digits than its factorization.

555555005000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71028 (or 71009 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 555555005000 in words is "five hundred fifty-five billion, five hundred fifty-five million, five thousand".