51023450273 has 2 divisors, whose sum is σ = 51023450274. Its totient is φ = 51023450272.

The previous prime is 51023450249. The next prime is 51023450279. The reversal of 51023450273 is 37205432015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36993521569 + 14029928704 = 192337^2 + 118448^2 .

It is a cyclic number.

It is not a de Polignac number, because 51023450273 - 2⁸ = 51023450017 is a prime.

It is a super-2 number, since 2×51023450273² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51023450279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511725136 + 25511725137.

It is an arithmetic number, because the mean of its divisors is an integer number (25511725137).

Almost surely, 2^51023450273 is an apocalyptic number.

It is an amenable number.

51023450273 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023450273 is an equidigital number, since it uses as much as digits as its factorization.

51023450273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

Adding to 51023450273 its reverse (37205432015), we get a palindrome (88228882288).

The spelling of 51023450273 in words is "fifty-one billion, twenty-three million, four hundred fifty thousand, two hundred seventy-three".