5111105550 has 24 divisors (see below), whose sum is σ = 12675542136. Its totient is φ = 1362961440.

The previous prime is 5111105497. The next prime is 5111105557. The reversal of 5111105550 is 555011115.

It is a super-2 number, since 2×5111105550² = 52246799886481605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5111105550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111105557) 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, 17036869 + ... + 17037168.

It is an arithmetic number, because the mean of its divisors is an integer number (528147589).

Almost surely, 2^5111105550 is an apocalyptic number.

5111105550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5111105550 is an abundant number, since it is smaller than the sum of its proper divisors (7564436586).

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

5111105550 is a wasteful number, since it uses less digits than its factorization.

5111105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34074052 (or 34074047 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 5111105550 is about 71491.9964051921. The cubic root of 5111105550 is about 1722.5491260513.

Adding to 5111105550 its reverse (555011115), we get a palindrome (5666116665).

It can be divided in two parts, 51111055 and 50, that added together give a triangular number (51111105 = T₁₀₁₁₀).

The spelling of 5111105550 in words is "five billion, one hundred eleven million, one hundred five thousand, five hundred fifty".