5311006621 has 2 divisors, whose sum is σ = 5311006622. Its totient is φ = 5311006620.

The previous prime is 5311006619. The next prime is 5311006651. The reversal of 5311006621 is 1266001135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4975750521 + 335256100 = 70539^2 + 18310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311006621 - 2¹ = 5311006619 is a prime.

Together with 5311006619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5311006651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655503310 + 2655503311.

It is an arithmetic number, because the mean of its divisors is an integer number (2655503311).

Almost surely, 2^5311006621 is an apocalyptic number.

It is an amenable number.

5311006621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5311006621 is an equidigital number, since it uses as much as digits as its factorization.

5311006621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 5311006621 is about 72876.6534700929. The cubic root of 5311006621 is about 1744.7194970071.

Adding to 5311006621 its reverse (1266001135), we get a palindrome (6577007756).

The spelling of 5311006621 in words is "five billion, three hundred eleven million, six thousand, six hundred twenty-one".