51110101050 has 48 divisors (see below), whose sum is σ = 128280227040. Its totient is φ = 13465147840.

The previous prime is 51110101039. The next prime is 51110101051. The reversal of 51110101050 is 5010101115.

It is a super-2 number, since 2×51110101050² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (51110101051) 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 23 ways as a sum of consecutive naturals, for example, 2040165 + ... + 2065064.

It is an arithmetic number, because the mean of its divisors is an integer number (2672504730).

Almost surely, 2^51110101050 is an apocalyptic number.

51110101050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51110101050 is an abundant number, since it is smaller than the sum of its proper divisors (77170125990).

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

51110101050 is a wasteful number, since it uses less digits than its factorization.

51110101050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105327 (or 4105322 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 51110101050 its reverse (5010101115), we get a palindrome (56120202165).

The spelling of 51110101050 in words is "fifty-one billion, one hundred ten million, one hundred one thousand, fifty".