5111005550 has 48 divisors (see below), whose sum is σ = 10872637440. Its totient is φ = 1751038560.

The previous prime is 5111005507. The next prime is 5111005573. The reversal of 5111005550 is 555001115.

It is a happy number.

It is a super-2 number, since 2×5111005550² = 52244755464261605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543791 + ... + 553109.

It is an arithmetic number, because the mean of its divisors is an integer number (226513280).

Almost surely, 2^5111005550 is an apocalyptic number.

5111005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5111005550 is an abundant number, since it is smaller than the sum of its proper divisors (5761631890).

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

5111005550 is a wasteful number, since it uses less digits than its factorization.

5111005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10905 (or 10900 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 5111005550 is about 71491.2970227845. The cubic root of 5111005550 is about 1722.5378919498.

Adding to 5111005550 its reverse (555001115), we get a palindrome (5666006665).

The spelling of 5111005550 in words is "five billion, one hundred eleven million, five thousand, five hundred fifty".