51250593329 has 4 divisors (see below), whose sum is σ = 55192946676. Its totient is φ = 47308239984.

The previous prime is 51250593323. The next prime is 51250593347. The reversal of 51250593329 is 92339505215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7686554929 + 43564038400 = 87673^2 + 208720^2 .

It is a cyclic number.

It is not a de Polignac number, because 51250593329 - 2¹² = 51250589233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51250593329.

It is not an unprimeable number, because it can be changed into a prime (51250593323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971176654 + ... + 1971176679.

It is an arithmetic number, because the mean of its divisors is an integer number (13798236669).

Almost surely, 2^51250593329 is an apocalyptic number.

It is an amenable number.

51250593329 is a deficient number, since it is larger than the sum of its proper divisors (3942353347).

51250593329 is a wasteful number, since it uses less digits than its factorization.

51250593329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942353346.

The product of its (nonzero) digits is 364500, while the sum is 44.

The spelling of 51250593329 in words is "fifty-one billion, two hundred fifty million, five hundred ninety-three thousand, three hundred twenty-nine".