5051281 has 2 divisors, whose sum is σ = 5051282. Its totient is φ = 5051280.

The previous prime is 5051269. The next prime is 5051287. The reversal of 5051281 is 1821505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4910656 + 140625 = 2216^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5051281 - 2¹⁵ = 5018513 is a prime.

It is a super-2 number, since 2×5051281² = 51030879481922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5051287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525640 + 2525641.

It is an arithmetic number, because the mean of its divisors is an integer number (2525641).

Almost surely, 2^5051281 is an apocalyptic number.

It is an amenable number.

5051281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5051281 is an equidigital number, since it uses as much as digits as its factorization.

5051281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 5051281 is about 2247.5055061112. The cubic root of 5051281 is about 171.5802025798.

Adding to 5051281 its reverse (1821505), we get a palindrome (6872786).

The spelling of 5051281 in words is "five million, fifty-one thousand, two hundred eighty-one".