51425273 has 2 divisors, whose sum is σ = 51425274. Its totient is φ = 51425272.

The previous prime is 51425243. The next prime is 51425293. The reversal of 51425273 is 37252415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 16224784 = 5933^2 + 4028^2 .

It is a cyclic number.

It is not a de Polignac number, because 51425273 - 2¹⁰ = 51424249 is a prime.

It is not a weakly prime, because it can be changed into another prime (51425203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25712636 + 25712637.

It is an arithmetic number, because the mean of its divisors is an integer number (25712637).

Almost surely, 2^51425273 is an apocalyptic number.

It is an amenable number.

51425273 is a deficient number, since it is larger than the sum of its proper divisors (1).

51425273 is an equidigital number, since it uses as much as digits as its factorization.

51425273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 51425273 is about 7171.1416803742. The cubic root of 51425273 is about 371.8709060868.

Adding to 51425273 its reverse (37252415), we get a palindrome (88677688).

The spelling of 51425273 in words is "fifty-one million, four hundred twenty-five thousand, two hundred seventy-three".