6553261111 has 2 divisors, whose sum is σ = 6553261112. Its totient is φ = 6553261110.

The previous prime is 6553261061. The next prime is 6553261123. The reversal of 6553261111 is 1111623556.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6553261111 - 2²¹ = 6551163959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6553261181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276630555 + 3276630556.

It is an arithmetic number, because the mean of its divisors is an integer number (3276630556).

Almost surely, 2^6553261111 is an apocalyptic number.

6553261111 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553261111 is an equidigital number, since it uses as much as digits as its factorization.

6553261111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 6553261111 is about 80952.2149851380. The cubic root of 6553261111 is about 1871.3390954729.

Adding to 6553261111 its reverse (1111623556), we get a palindrome (7664884667).

The spelling of 6553261111 in words is "six billion, five hundred fifty-three million, two hundred sixty-one thousand, one hundred eleven".