115555603 has 2 divisors, whose sum is σ = 115555604. Its totient is φ = 115555602.

The previous prime is 115555547. The next prime is 115555621. The reversal of 115555603 is 306555511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115555603 - 2⁹ = 115555091 is a prime.

It is not a weakly prime, because it can be changed into another prime (115555303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57777801 + 57777802.

It is an arithmetic number, because the mean of its divisors is an integer number (57777802).

Almost surely, 2^115555603 is an apocalyptic number.

115555603 is a deficient number, since it is larger than the sum of its proper divisors (1).

115555603 is an equidigital number, since it uses as much as digits as its factorization.

115555603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 115555603 is about 10749.6792045158. The cubic root of 115555603 is about 487.0763049316.

The spelling of 115555603 in words is "one hundred fifteen million, five hundred fifty-five thousand, six hundred three".