258278627 has 2 divisors, whose sum is σ = 258278628. Its totient is φ = 258278626.

The previous prime is 258278561. The next prime is 258278641. The reversal of 258278627 is 726872852.

258278627 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 258278627 - 2¹² = 258274531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258278327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129139313 + 129139314.

It is an arithmetic number, because the mean of its divisors is an integer number (129139314).

Almost surely, 2^258278627 is an apocalyptic number.

258278627 is a deficient number, since it is larger than the sum of its proper divisors (1).

258278627 is an equidigital number, since it uses as much as digits as its factorization.

258278627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 258278627 is about 16071.0493434623. The cubic root of 258278627 is about 636.8387623852.

The spelling of 258278627 in words is "two hundred fifty-eight million, two hundred seventy-eight thousand, six hundred twenty-seven".