5207681 has 2 divisors, whose sum is σ = 5207682. Its totient is φ = 5207680.

The previous prime is 5207677. The next prime is 5207707. The reversal of 5207681 is 1867025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4910656 + 297025 = 2216^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 5207681 - 2² = 5207677 is a prime.

It is a super-2 number, since 2×5207681² = 54239882795522, which contains 22 as substring.

It is equal to p₃₆₁₉₂₈ and since 5207681 and 361928 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5207611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603840 + 2603841.

It is an arithmetic number, because the mean of its divisors is an integer number (2603841).

Almost surely, 2^5207681 is an apocalyptic number.

It is an amenable number.

5207681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5207681 is an equidigital number, since it uses as much as digits as its factorization.

5207681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 5207681 is about 2282.0343993902. The cubic root of 5207681 is about 173.3330814428. Note that the first 3 decimals are identical.

The spelling of 5207681 in words is "five million, two hundred seven thousand, six hundred eighty-one".