51051361 has 2 divisors, whose sum is σ = 51051362. Its totient is φ = 51051360.

The previous prime is 51051317. The next prime is 51051367. The reversal of 51051361 is 16315015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 712336 = 7095^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 51051361 - 2⁹ = 51050849 is a prime.

It is not a weakly prime, because it can be changed into another prime (51051367) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525680 + 25525681.

It is an arithmetic number, because the mean of its divisors is an integer number (25525681).

Almost surely, 2^51051361 is an apocalyptic number.

It is an amenable number.

51051361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51051361 is an equidigital number, since it uses as much as digits as its factorization.

51051361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 51051361 is about 7145.0235129074. The cubic root of 51051361 is about 370.9674244810.

Adding to 51051361 its reverse (16315015), we get a palindrome (67366376).

The spelling of 51051361 in words is "fifty-one million, fifty-one thousand, three hundred sixty-one".