51407273 has 2 divisors, whose sum is σ = 51407274. Its totient is φ = 51407272.

The previous prime is 51407267. The next prime is 51407281. The reversal of 51407273 is 37270415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46963609 + 4443664 = 6853^2 + 2108^2 .

It is a cyclic number.

It is not a de Polignac number, because 51407273 - 2⁸ = 51407017 is a prime.

It is not a weakly prime, because it can be changed into another prime (51407243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25703636 + 25703637.

It is an arithmetic number, because the mean of its divisors is an integer number (25703637).

Almost surely, 2^51407273 is an apocalyptic number.

It is an amenable number.

51407273 is a deficient number, since it is larger than the sum of its proper divisors (1).

51407273 is an equidigital number, since it uses as much as digits as its factorization.

51407273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 51407273 is about 7169.8865402459. The cubic root of 51407273 is about 371.8275133018.

Adding to 51407273 its reverse (37270415), we get a palindrome (88677688).

The spelling of 51407273 in words is "fifty-one million, four hundred seven thousand, two hundred seventy-three".