51897284923529 has 2 divisors, whose sum is σ = 51897284923530. Its totient is φ = 51897284923528.

The previous prime is 51897284923511. The next prime is 51897284923553. The reversal of 51897284923529 is 92532948279815.

51897284923529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51707604640000 + 189680283529 = 7190800^2 + 435523^2 .

It is a cyclic number.

It is not a de Polignac number, because 51897284923529 - 2¹⁶ = 51897284857993 is a prime.

It is a super-3 number, since 3×51897284923529³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51897284923559) 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 as a sum of consecutive naturals, namely, 25948642461764 + 25948642461765.

It is an arithmetic number, because the mean of its divisors is an integer number (25948642461765).

Almost surely, 2^{51897284923529} is an apocalyptic number.

It is an amenable number.

51897284923529 is a deficient number, since it is larger than the sum of its proper divisors (1).

51897284923529 is an equidigital number, since it uses as much as digits as its factorization.

51897284923529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 783820800, while the sum is 74.

The spelling of 51897284923529 in words is "fifty-one trillion, eight hundred ninety-seven billion, two hundred eighty-four million, nine hundred twenty-three thousand, five hundred twenty-nine".