51241241 has 2 divisors, whose sum is σ = 51241242. Its totient is φ = 51241240.

The previous prime is 51241237. The next prime is 51241243. The reversal of 51241241 is 14214215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32535616 + 18705625 = 5704^2 + 4325^2 .

It is a cyclic number.

It is not a de Polignac number, because 51241241 - 2² = 51241237 is a prime.

Together with 51241243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51241243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25620620 + 25620621.

It is an arithmetic number, because the mean of its divisors is an integer number (25620621).

Almost surely, 2^51241241 is an apocalyptic number.

It is an amenable number.

51241241 is a deficient number, since it is larger than the sum of its proper divisors (1).

51241241 is an equidigital number, since it uses as much as digits as its factorization.

51241241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 20.

The square root of 51241241 is about 7158.2987504015. The cubic root of 51241241 is about 371.4267798096.

Adding to 51241241 its reverse (14214215), we get a palindrome (65455456).

The spelling of 51241241 in words is "fifty-one million, two hundred forty-one thousand, two hundred forty-one".