51011110550101 has 6 divisors (see below), whose sum is σ = 55236883021890. Its totient is φ = 47087178969168.

The previous prime is 51011110550083. The next prime is 51011110550111. The reversal of 51011110550101 is 10105501111015.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6265379449476 + 44745731100625 = 2503074^2 + 6689225^2 .

It is not a de Polignac number, because 51011110550101 - 2²³ = 51011102161493 is a prime.

It is a super-2 number, since 2×51011110550101² (a number of 28 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 (51011110550111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150920445246 + ... + 150920445583.

It is an arithmetic number, because the mean of its divisors is an integer number (9206147170315).

Almost surely, 2^{51011110550101} is an apocalyptic number.

It is an amenable number.

51011110550101 is a deficient number, since it is larger than the sum of its proper divisors (4225772471789).

51011110550101 is a wasteful number, since it uses less digits than its factorization.

51011110550101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301840890855 (or 301840890842 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 22.

Adding to 51011110550101 its reverse (10105501111015), we get a palindrome (61116611661116).

The spelling of 51011110550101 in words is "fifty-one trillion, eleven billion, one hundred ten million, five hundred fifty thousand, one hundred one".