555505005550 has 48 divisors (see below), whose sum is σ = 1128881318400. Its totient is φ = 201695160800.

The previous prime is 555505005509. The next prime is 555505005553. The reversal of 555505005550 is 55500505555.

It is a super-2 number, since 2×555505005550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555505005553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403870 + ... + 1128769.

It is an arithmetic number, because the mean of its divisors is an integer number (23518360800).

Almost surely, 2^555505005550 is an apocalyptic number.

555505005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

555505005550 is an abundant number, since it is smaller than the sum of its proper divisors (573376312850).

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

555505005550 is a wasteful number, since it uses less digits than its factorization.

555505005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533321 (or 1533316 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 40.

It can be divided in two parts, 555505005 and 550, that added together give a palindrome (555505555).

The spelling of 555505005550 in words is "five hundred fifty-five billion, five hundred five million, five thousand, five hundred fifty".