5021771 has 2 divisors, whose sum is σ = 5021772. Its totient is φ = 5021770.

The previous prime is 5021729. The next prime is 5021773. The reversal of 5021771 is 1771205.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5021771 is a prime.

It is a Sophie Germain prime.

Together with 5021773, 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 (5021773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510885 + 2510886.

It is an arithmetic number, because the mean of its divisors is an integer number (2510886).

Almost surely, 2^5021771 is an apocalyptic number.

5021771 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021771 is an equidigital number, since it uses as much as digits as its factorization.

5021771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 5021771 is about 2240.9308333815. The cubic root of 5021771 is about 171.2454212284.

Adding to 5021771 its reverse (1771205), we get a palindrome (6792976).

It can be divided in two parts, 50 and 21771, that multiplied together give a triangular number (1088550 = T₁₄₇₅).

The spelling of 5021771 in words is "five million, twenty-one thousand, seven hundred seventy-one".