258361603 has 2 divisors, whose sum is σ = 258361604. Its totient is φ = 258361602.

The previous prime is 258361589. The next prime is 258361627. The reversal of 258361603 is 306163852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258361603 - 2⁹ = 258361091 is a prime.

It is not a weakly prime, because it can be changed into another prime (258361643) 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, 129180801 + 129180802.

It is an arithmetic number, because the mean of its divisors is an integer number (129180802).

Almost surely, 2^258361603 is an apocalyptic number.

258361603 is a deficient number, since it is larger than the sum of its proper divisors (1).

258361603 is an equidigital number, since it uses as much as digits as its factorization.

258361603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 258361603 is about 16073.6306726265. The cubic root of 258361603 is about 636.9069531810.

The spelling of 258361603 in words is "two hundred fifty-eight million, three hundred sixty-one thousand, six hundred three".