51853766059 has 4 divisors (see below), whose sum is σ = 52122438616. Its totient is φ = 51585093504.

The previous prime is 51853766057. The next prime is 51853766113. The reversal of 51853766059 is 95066735815.

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 51853766059 - 2¹ = 51853766057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51853766051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134335989 + ... + 134336374.

It is an arithmetic number, because the mean of its divisors is an integer number (13030609654).

Almost surely, 2^51853766059 is an apocalyptic number.

51853766059 is a deficient number, since it is larger than the sum of its proper divisors (268672557).

51853766059 is a wasteful number, since it uses less digits than its factorization.

51853766059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268672556.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 51853766059 in words is "fifty-one billion, eight hundred fifty-three million, seven hundred sixty-six thousand, fifty-nine".