51106055345563 has 4 divisors (see below), whose sum is σ = 54112293895320. Its totient is φ = 48099816795808.

The previous prime is 51106055345557. The next prime is 51106055345663. The reversal of 51106055345563 is 36554355060115.

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

It is a cyclic number.

It is not a de Polignac number, because 51106055345563 - 2²⁹ = 51105518474651 is a prime.

It is a super-2 number, since 2×51106055345563² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51106055345663) 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, 1503119274853 + ... + 1503119274886.

It is an arithmetic number, because the mean of its divisors is an integer number (13528073473830).

Almost surely, 2^{51106055345563} is an apocalyptic number.

51106055345563 is a deficient number, since it is larger than the sum of its proper divisors (3006238549757).

51106055345563 is a wasteful number, since it uses less digits than its factorization.

51106055345563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006238549756.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The spelling of 51106055345563 in words is "fifty-one trillion, one hundred six billion, fifty-five million, three hundred forty-five thousand, five hundred sixty-three".