51110606101 has 4 divisors (see below), whose sum is σ = 51186551212. Its totient is φ = 51034660992.

The previous prime is 51110606051. The next prime is 51110606123. The reversal of 51110606101 is 10160601115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37161815076 + 13948791025 = 192774^2 + 118105^2 .

It is a cyclic number.

It is not a de Polignac number, because 51110606101 - 2¹⁵ = 51110573333 is a prime.

It is a super-2 number, since 2×51110606101² (a number of 22 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 (51110606201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37971546 + ... + 37972891.

It is an arithmetic number, because the mean of its divisors is an integer number (12796637803).

Almost surely, 2^51110606101 is an apocalyptic number.

It is an amenable number.

51110606101 is a deficient number, since it is larger than the sum of its proper divisors (75945111).

51110606101 is an equidigital number, since it uses as much as digits as its factorization.

51110606101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75945110.

The product of its (nonzero) digits is 180, while the sum is 22.

The spelling of 51110606101 in words is "fifty-one billion, one hundred ten million, six hundred six thousand, one hundred one".