5220731 has 2 divisors, whose sum is σ = 5220732. Its totient is φ = 5220730.

The previous prime is 5220689. The next prime is 5220749. The reversal of 5220731 is 1370225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5220731 - 2¹⁸ = 4958587 is a prime.

It is a super-2 number, since 2×5220731² = 54512064348722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610365 + 2610366.

It is an arithmetic number, because the mean of its divisors is an integer number (2610366).

Almost surely, 2^5220731 is an apocalyptic number.

5220731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5220731 is an equidigital number, since it uses as much as digits as its factorization.

5220731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 5220731 is about 2284.8919011629. The cubic root of 5220731 is about 173.4777465943.

Adding to 5220731 its reverse (1370225), we get a palindrome (6590956).

The spelling of 5220731 in words is "five million, two hundred twenty thousand, seven hundred thirty-one".