110555521 has 2 divisors, whose sum is σ = 110555522. Its totient is φ = 110555520.

The previous prime is 110555443. The next prime is 110555527. The reversal of 110555521 is 125555011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92160000 + 18395521 = 9600^2 + 4289^2 .

It is an emirp because it is prime and its reverse (125555011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110555521 - 2⁹ = 110555009 is a prime.

It is not a weakly prime, because it can be changed into another prime (110555527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55277760 + 55277761.

It is an arithmetic number, because the mean of its divisors is an integer number (55277761).

Almost surely, 2^110555521 is an apocalyptic number.

It is an amenable number.

110555521 is a deficient number, since it is larger than the sum of its proper divisors (1).

110555521 is an equidigital number, since it uses as much as digits as its factorization.

110555521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 110555521 is about 10514.5385538311. The cubic root of 110555521 is about 479.9472178651.

The spelling of 110555521 in words is "one hundred ten million, five hundred fifty-five thousand, five hundred twenty-one".