5555505550 has 24 divisors (see below), whose sum is σ = 11809418256. Its totient is φ = 1904744640.

The previous prime is 5555505533. The next prime is 5555505559. The reversal of 5555505550 is 555055555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555505559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7936087 + ... + 7936786.

It is an arithmetic number, because the mean of its divisors is an integer number (492059094).

Almost surely, 2^5555505550 is an apocalyptic number.

5555505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5555505550 is an abundant number, since it is smaller than the sum of its proper divisors (6253912706).

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

5555505550 is a wasteful number, since it uses less digits than its factorization.

5555505550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872892 (or 15872887 counting only the distinct ones).

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

The square root of 5555505550 is about 74535.2638017737. The cubic root of 5555505550 is about 1771.0923014052.

It can be divided in two parts, 5 and 555505550, that added together give a palindrome (555505555).

The spelling of 5555505550 in words is "five billion, five hundred fifty-five million, five hundred five thousand, five hundred fifty".