258507563 has 2 divisors, whose sum is σ = 258507564. Its totient is φ = 258507562.

The previous prime is 258507541. The next prime is 258507577. The reversal of 258507563 is 365705852.

258507563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258507563 - 2⁸ = 258507307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258507563.

It is not a weakly prime, because it can be changed into another prime (258507503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129253781 + 129253782.

It is an arithmetic number, because the mean of its divisors is an integer number (129253782).

Almost surely, 2^258507563 is an apocalyptic number.

258507563 is a deficient number, since it is larger than the sum of its proper divisors (1).

258507563 is an equidigital number, since it uses as much as digits as its factorization.

258507563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 258507563 is about 16078.1703872051. The cubic root of 258507563 is about 637.0268696560.

The spelling of 258507563 in words is "two hundred fifty-eight million, five hundred seven thousand, five hundred sixty-three".