11521554263 has 2 divisors, whose sum is σ = 11521554264. Its totient is φ = 11521554262.

The previous prime is 11521554257. The next prime is 11521554277. The reversal of 11521554263 is 36245512511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11521554263 - 2⁶ = 11521554199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11521554293) 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, 5760777131 + 5760777132.

It is an arithmetic number, because the mean of its divisors is an integer number (5760777132).

Almost surely, 2^11521554263 is an apocalyptic number.

11521554263 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521554263 is an equidigital number, since it uses as much as digits as its factorization.

11521554263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The spelling of 11521554263 in words is "eleven billion, five hundred twenty-one million, five hundred fifty-four thousand, two hundred sixty-three".