51066255703 has 4 divisors (see below), whose sum is σ = 51069010888. Its totient is φ = 51063500520.

The previous prime is 51066255679. The next prime is 51066255743. The reversal of 51066255703 is 30755266015.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51066255703 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 (51066255743) 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, 1349601 + ... + 1386922.

It is an arithmetic number, because the mean of its divisors is an integer number (12767252722).

Almost surely, 2^51066255703 is an apocalyptic number.

51066255703 is a deficient number, since it is larger than the sum of its proper divisors (2755185).

51066255703 is a wasteful number, since it uses less digits than its factorization.

51066255703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755184.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 51066255703 in words is "fifty-one billion, sixty-six million, two hundred fifty-five thousand, seven hundred three".