6553220652553 has 2 divisors, whose sum is σ = 6553220652554. Its totient is φ = 6553220652552.

The previous prime is 6553220652547. The next prime is 6553220652683. The reversal of 6553220652553 is 3552560223556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4240518799504 + 2312701853049 = 2059252^2 + 1520757^2 .

It is a cyclic number.

It is not a de Polignac number, because 6553220652553 - 2²⁵ = 6553187098121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6553220652497 and 6553220652506.

It is not a weakly prime, because it can be changed into another prime (6553220652533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276610326276 + 3276610326277.

It is an arithmetic number, because the mean of its divisors is an integer number (3276610326277).

Almost surely, 2^{6553220652553} is an apocalyptic number.

It is an amenable number.

6553220652553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553220652553 is an equidigital number, since it uses as much as digits as its factorization.

6553220652553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100000, while the sum is 49.

The spelling of 6553220652553 in words is "six trillion, five hundred fifty-three billion, two hundred twenty million, six hundred fifty-two thousand, five hundred fifty-three".