5511707121 has 16 divisors (see below), whose sum is σ = 7532981568. Its totient is φ = 3582566400.

The previous prime is 5511707119. The next prime is 5511707129. The reversal of 5511707121 is 1217071155.

It is not a de Polignac number, because 5511707121 - 2¹ = 5511707119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5511707129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191601 + ... + 218481.

It is an arithmetic number, because the mean of its divisors is an integer number (470811348).

Almost surely, 2^5511707121 is an apocalyptic number.

It is an amenable number.

5511707121 is a deficient number, since it is larger than the sum of its proper divisors (2021274447).

5511707121 is a wasteful number, since it uses less digits than its factorization.

5511707121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28592.

The product of its (nonzero) digits is 2450, while the sum is 30.

The square root of 5511707121 is about 74240.8723076447. The cubic root of 5511707121 is about 1766.4257108462.

Adding to 5511707121 its reverse (1217071155), we get a palindrome (6728778276).

The spelling of 5511707121 in words is "five billion, five hundred eleven million, seven hundred seven thousand, one hundred twenty-one".