51110052043349 has 4 divisors (see below), whose sum is σ = 55041594508236. Its totient is φ = 47178509578464.

The previous prime is 51110052043273. The next prime is 51110052043403. The reversal of 51110052043349 is 94334025001115.

It is a happy number.

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 6764774442724 + 44345277600625 = 2600918^2 + 6659225^2 .

It is a cyclic number.

It is not a de Polignac number, because 51110052043349 - 2²⁰ = 51110050994773 is a prime.

It is a super-2 number, since 2×51110052043349² (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 (51110052043949) 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, 1965771232424 + ... + 1965771232449.

It is an arithmetic number, because the mean of its divisors is an integer number (13760398627059).

Almost surely, 2^{51110052043349} is an apocalyptic number.

It is an amenable number.

51110052043349 is a deficient number, since it is larger than the sum of its proper divisors (3931542464887).

51110052043349 is a wasteful number, since it uses less digits than its factorization.

51110052043349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931542464886.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 51110052043349 in words is "fifty-one trillion, one hundred ten billion, fifty-two million, forty-three thousand, three hundred forty-nine".