51056050011109 has 32 divisors (see below), whose sum is σ = 63865088461440. Its totient is φ = 40098714470400.

The previous prime is 51056050011079. The next prime is 51056050011121. The reversal of 51056050011109 is 90111005065015.

It is a cyclic number.

It is not a de Polignac number, because 51056050011109 - 2¹³ = 51056050002917 is a prime.

It is a super-3 number, since 3×51056050011109³ (a number of 42 digits) contains 333 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 (51056050011179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58229872 + ... + 59100169.

It is an arithmetic number, because the mean of its divisors is an integer number (1995784014420).

Almost surely, 2^{51056050011109} is an apocalyptic number.

It is an amenable number.

51056050011109 is a deficient number, since it is larger than the sum of its proper divisors (12809038450331).

51056050011109 is a wasteful number, since it uses less digits than its factorization.

51056050011109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117330261.

The product of its (nonzero) digits is 6750, while the sum is 34.

The spelling of 51056050011109 in words is "fifty-one trillion, fifty-six billion, fifty million, eleven thousand, one hundred nine".