6553321751 has 2 divisors, whose sum is σ = 6553321752. Its totient is φ = 6553321750.

The previous prime is 6553321717. The next prime is 6553321757. The reversal of 6553321751 is 1571233556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6553321751 - 2¹⁸ = 6553059607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6553321757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276660875 + 3276660876.

It is an arithmetic number, because the mean of its divisors is an integer number (3276660876).

Almost surely, 2^6553321751 is an apocalyptic number.

6553321751 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553321751 is an equidigital number, since it uses as much as digits as its factorization.

6553321751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The square root of 6553321751 is about 80952.5895262159. The cubic root of 6553321751 is about 1871.3448675433.

The spelling of 6553321751 in words is "six billion, five hundred fifty-three million, three hundred twenty-one thousand, seven hundred fifty-one".