51055500505067 has 4 divisors (see below), whose sum is σ = 51073728105336. Its totient is φ = 51037272904800.

The previous prime is 51055500505027. The next prime is 51055500505099. The reversal of 51055500505067 is 76050500555015.

It is a happy number.

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 51055500505067 - 2⁶ = 51055500505003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51055500505027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9113795933 + ... + 9113801534.

It is an arithmetic number, because the mean of its divisors is an integer number (12768432026334).

Almost surely, 2^{51055500505067} is an apocalyptic number.

51055500505067 is a deficient number, since it is larger than the sum of its proper divisors (18227600269).

51055500505067 is a wasteful number, since it uses less digits than its factorization.

51055500505067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18227600268.

The product of its (nonzero) digits is 656250, while the sum is 44.

The spelling of 51055500505067 in words is "fifty-one trillion, fifty-five billion, five hundred million, five hundred five thousand, sixty-seven".