258025393 has 2 divisors, whose sum is σ = 258025394. Its totient is φ = 258025392.

The previous prime is 258025379. The next prime is 258025409. The reversal of 258025393 is 393520852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240653169 + 17372224 = 15513^2 + 4168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258025393 is a prime.

It is not a weakly prime, because it can be changed into another prime (258025993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129012696 + 129012697.

It is an arithmetic number, because the mean of its divisors is an integer number (129012697).

Almost surely, 2^258025393 is an apocalyptic number.

It is an amenable number.

258025393 is a deficient number, since it is larger than the sum of its proper divisors (1).

258025393 is an equidigital number, since it uses as much as digits as its factorization.

258025393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 258025393 is about 16063.1688343241. The cubic root of 258025393 is about 636.6305609244.

The spelling of 258025393 in words is "two hundred fifty-eight million, twenty-five thousand, three hundred ninety-three".