51550110110 has 128 divisors (see below), whose sum is σ = 101993126400. Its totient is φ = 18694126080.

The previous prime is 51550110109. The next prime is 51550110137. The reversal of 51550110110 is 1101105515.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95286440 + ... + 95286980.

It is an arithmetic number, because the mean of its divisors is an integer number (796821300).

Almost surely, 2^51550110110 is an apocalyptic number.

51550110110 is a deficient number, since it is larger than the sum of its proper divisors (50443016290).

51550110110 is a wasteful number, since it uses less digits than its factorization.

51550110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 125, while the sum is 20.

Adding to 51550110110 its reverse (1101105515), we get a palindrome (52651215625).

The spelling of 51550110110 in words is "fifty-one billion, five hundred fifty million, one hundred ten thousand, one hundred ten".