51055211364173 has 4 divisors (see below), whose sum is σ = 51055388251968. Its totient is φ = 51055034476380.

The previous prime is 51055211363957. The next prime is 51055211364193. The reversal of 51055211364173 is 37146311255015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51055211364173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055211364193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88010243 + ... + 88588448.

It is an arithmetic number, because the mean of its divisors is an integer number (12763847062992).

Almost surely, 2^{51055211364173} is an apocalyptic number.

It is an amenable number.

51055211364173 is a deficient number, since it is larger than the sum of its proper divisors (176887795).

51055211364173 is a wasteful number, since it uses less digits than its factorization.

51055211364173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176887794.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 51055211364173 in words is "fifty-one trillion, fifty-five billion, two hundred eleven million, three hundred sixty-four thousand, one hundred seventy-three".