51950118529 has 4 divisors (see below), whose sum is σ = 51950813184. Its totient is φ = 51949423876.

The previous prime is 51950118511. The next prime is 51950118541. The reversal of 51950118529 is 92581105915.

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 not a de Polignac number, because 51950118529 - 2¹³ = 51950110337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51950113529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219457 + ... + 389950.

It is an arithmetic number, because the mean of its divisors is an integer number (12987703296).

Almost surely, 2^51950118529 is an apocalyptic number.

It is an amenable number.

51950118529 is a deficient number, since it is larger than the sum of its proper divisors (694655).

51950118529 is an equidigital number, since it uses as much as digits as its factorization.

51950118529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694654.

The product of its (nonzero) digits is 162000, while the sum is 46.

The spelling of 51950118529 in words is "fifty-one billion, nine hundred fifty million, one hundred eighteen thousand, five hundred twenty-nine".