51051653 has 2 divisors, whose sum is σ = 51051654. Its totient is φ = 51051652.

The previous prime is 51051647. The next prime is 51051677. The reversal of 51051653 is 35615015.

51051653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42484324 + 8567329 = 6518^2 + 2927^2 .

It is a cyclic number.

It is not a de Polignac number, because 51051653 - 2²⁰ = 50003077 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 (51051953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525826 + 25525827.

It is an arithmetic number, because the mean of its divisors is an integer number (25525827).

Almost surely, 2^51051653 is an apocalyptic number.

It is an amenable number.

51051653 is a deficient number, since it is larger than the sum of its proper divisors (1).

51051653 is an equidigital number, since it uses as much as digits as its factorization.

51051653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 51051653 is about 7145.0439466808. The cubic root of 51051653 is about 370.9681317575.

Adding to 51051653 its reverse (35615015), we get a palindrome (86666668).

The spelling of 51051653 in words is "fifty-one million, fifty-one thousand, six hundred fifty-three".