5511100050511 has 16 divisors (see below), whose sum is σ = 6018154795008. Its totient is φ = 5005055484000.

The previous prime is 5511100050461. The next prime is 5511100050527. The reversal of 5511100050511 is 1150500011155.

It is not a de Polignac number, because 5511100050511 - 2²¹ = 5511097953359 is a prime.

It is a super-2 number, since 2×5511100050511² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511100050551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44211805 + ... + 44336281.

It is an arithmetic number, because the mean of its divisors is an integer number (376134674688).

Almost surely, 2^{5511100050511} is an apocalyptic number.

5511100050511 is a deficient number, since it is larger than the sum of its proper divisors (507054744497).

5511100050511 is a wasteful number, since it uses less digits than its factorization.

5511100050511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128502.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 5511100050511 its reverse (1150500011155), we get a palindrome (6661600061666).

The spelling of 5511100050511 in words is "five trillion, five hundred eleven billion, one hundred million, fifty thousand, five hundred eleven".