5229781 has 2 divisors, whose sum is σ = 5229782. Its totient is φ = 5229780.

The previous prime is 5229767. The next prime is 5229787. The reversal of 5229781 is 1879225.

5229781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5062500 + 167281 = 2250^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 5229781 - 2⁹ = 5229269 is a prime.

It is a super-2 number, since 2×5229781² = 54701218615922, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5229787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2614890 + 2614891.

It is an arithmetic number, because the mean of its divisors is an integer number (2614891).

Almost surely, 2^5229781 is an apocalyptic number.

It is an amenable number.

5229781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5229781 is an equidigital number, since it uses as much as digits as its factorization.

5229781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 5229781 is about 2286.8714436977. The cubic root of 5229781 is about 173.5779284341.

The spelling of 5229781 in words is "five million, two hundred twenty-nine thousand, seven hundred eighty-one".