5006621 has 2 divisors, whose sum is σ = 5006622. Its totient is φ = 5006620.

The previous prime is 5006611. The next prime is 5006623. The reversal of 5006621 is 1266005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 1125721 = 1970^2 + 1061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5006621 is a prime.

It is a Sophie Germain prime.

Together with 5006623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5006593 and 5006602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5006623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2503310 + 2503311.

It is an arithmetic number, because the mean of its divisors is an integer number (2503311).

Almost surely, 2^5006621 is an apocalyptic number.

It is an amenable number.

5006621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5006621 is an equidigital number, since it uses as much as digits as its factorization.

5006621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 5006621 is about 2237.5479883122. The cubic root of 5006621 is about 171.0730397143.

The spelling of 5006621 in words is "five million, six thousand, six hundred twenty-one".