51267673 has 2 divisors, whose sum is σ = 51267674. Its totient is φ = 51267672.

The previous prime is 51267661. The next prime is 51267779. The reversal of 51267673 is 37676215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50083929 + 1183744 = 7077^2 + 1088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51267673 is a prime.

It is not a weakly prime, because it can be changed into another prime (51261673) 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, 25633836 + 25633837.

It is an arithmetic number, because the mean of its divisors is an integer number (25633837).

Almost surely, 2^51267673 is an apocalyptic number.

It is an amenable number.

51267673 is a deficient number, since it is larger than the sum of its proper divisors (1).

51267673 is an equidigital number, since it uses as much as digits as its factorization.

51267673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 51267673 is about 7160.1447611064. The cubic root of 51267673 is about 371.4906337474.

The spelling of 51267673 in words is "fifty-one million, two hundred sixty-seven thousand, six hundred seventy-three".