5515111110 has 32 divisors (see below), whose sum is σ = 13663245312. Its totient is φ = 1423254240.

The previous prime is 5515111103. The next prime is 5515111111. The reversal of 5515111110 is 111115155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515111111) 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, 2964184 + ... + 2966043.

It is an arithmetic number, because the mean of its divisors is an integer number (426976416).

Almost surely, 2^5515111110 is an apocalyptic number.

5515111110 is an abundant number, since it is smaller than the sum of its proper divisors (8148134202).

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

5515111110 is a wasteful number, since it uses less digits than its factorization.

5515111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930268.

The product of its (nonzero) digits is 125, while the sum is 21.

The square root of 5515111110 is about 74263.7940722126. The cubic root of 5515111110 is about 1766.7892797697.

Adding to 5515111110 its reverse (111115155), we get a palindrome (5626226265).

The spelling of 5515111110 in words is "five billion, five hundred fifteen million, one hundred eleven thousand, one hundred ten".