6752222621 has 2 divisors, whose sum is σ = 6752222622. Its totient is φ = 6752222620.

The previous prime is 6752222593. The next prime is 6752222663. The reversal of 6752222621 is 1262222576.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6498616996 + 253605625 = 80614^2 + 15925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6752222621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6752222021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3376111310 + 3376111311.

It is an arithmetic number, because the mean of its divisors is an integer number (3376111311).

Almost surely, 2^6752222621 is an apocalyptic number.

It is an amenable number.

6752222621 is a deficient number, since it is larger than the sum of its proper divisors (1).

6752222621 is an equidigital number, since it uses as much as digits as its factorization.

6752222621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 6752222621 is about 82171.9089531210. The cubic root of 6752222621 is about 1890.0889837074.

The spelling of 6752222621 in words is "six billion, seven hundred fifty-two million, two hundred twenty-two thousand, six hundred twenty-one".