51132020273 has 2 divisors, whose sum is σ = 51132020274. Its totient is φ = 51132020272.

The previous prime is 51132020201. The next prime is 51132020417. The reversal of 51132020273 is 37202023115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34322379169 + 16809641104 = 185263^2 + 129652^2 .

It is a cyclic number.

It is not a de Polignac number, because 51132020273 - 2¹⁰ = 51132019249 is a prime.

It is a super-2 number, since 2×51132020273² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51132026273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566010136 + 25566010137.

It is an arithmetic number, because the mean of its divisors is an integer number (25566010137).

Almost surely, 2^51132020273 is an apocalyptic number.

It is an amenable number.

51132020273 is a deficient number, since it is larger than the sum of its proper divisors (1).

51132020273 is an equidigital number, since it uses as much as digits as its factorization.

51132020273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 51132020273 its reverse (37202023115), we get a palindrome (88334043388).

The spelling of 51132020273 in words is "fifty-one billion, one hundred thirty-two million, twenty thousand, two hundred seventy-three".