51000041 has 2 divisors, whose sum is σ = 51000042. Its totient is φ = 51000040.

The previous prime is 50999999. The next prime is 51000049. The reversal of 51000041 is 14000015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 802816 = 7085^2 + 896^2 .

It is a cyclic number.

It is not a de Polignac number, because 51000041 - 2¹⁴ = 50983657 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 50999986 and 51000031.

It is not a weakly prime, because it can be changed into another prime (51000049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500020 + 25500021.

It is an arithmetic number, because the mean of its divisors is an integer number (25500021).

Almost surely, 2^51000041 is an apocalyptic number.

It is an amenable number.

51000041 is a deficient number, since it is larger than the sum of its proper divisors (1).

51000041 is an equidigital number, since it uses as much as digits as its factorization.

51000041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 51000041 is about 7141.4312991164. The cubic root of 51000041 is about 370.8430763028.

Adding to 51000041 its reverse (14000015), we get a palindrome (65000056).

The spelling of 51000041 in words is "fifty-one million, forty-one", and thus it is an aban number and an uban number.