51629741 has 2 divisors, whose sum is σ = 51629742. Its totient is φ = 51629740.

The previous prime is 51629693. The next prime is 51629749. The reversal of 51629741 is 14792615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33396841 + 18232900 = 5779^2 + 4270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51629741 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51629749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25814870 + 25814871.

It is an arithmetic number, because the mean of its divisors is an integer number (25814871).

Almost surely, 2^51629741 is an apocalyptic number.

It is an amenable number.

51629741 is a deficient number, since it is larger than the sum of its proper divisors (1).

51629741 is an equidigital number, since it uses as much as digits as its factorization.

51629741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 51629741 is about 7185.3838450009. The cubic root of 51629741 is about 372.3631099184.

The spelling of 51629741 in words is "fifty-one million, six hundred twenty-nine thousand, seven hundred forty-one".