108055561 has 2 divisors, whose sum is σ = 108055562. Its totient is φ = 108055560.

The previous prime is 108055529. The next prime is 108055567. The reversal of 108055561 is 165550801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78145600 + 29909961 = 8840^2 + 5469^2 .

It is a cyclic number.

It is not a de Polignac number, because 108055561 - 2⁵ = 108055529 is a prime.

It is not a weakly prime, because it can be changed into another prime (108055567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54027780 + 54027781.

It is an arithmetic number, because the mean of its divisors is an integer number (54027781).

Almost surely, 2^108055561 is an apocalyptic number.

It is an amenable number.

108055561 is a deficient number, since it is larger than the sum of its proper divisors (1).

108055561 is an equidigital number, since it uses as much as digits as its factorization.

108055561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 108055561 is about 10394.9776815537. The cubic root of 108055561 is about 476.3019660253.

The spelling of 108055561 in words is "one hundred eight million, fifty-five thousand, five hundred sixty-one".