258672049 has 2 divisors, whose sum is σ = 258672050. Its totient is φ = 258672048.

The previous prime is 258672031. The next prime is 258672077. The reversal of 258672049 is 940276852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256800625 + 1871424 = 16025^2 + 1368^2 .

It is a cyclic number.

It is not a de Polignac number, because 258672049 - 2¹¹ = 258670001 is a prime.

It is a super-2 number, since 2×258672049² = 133822457867716802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258671996 and 258672014.

It is not a weakly prime, because it can be changed into another prime (258672019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129336024 + 129336025.

It is an arithmetic number, because the mean of its divisors is an integer number (129336025).

Almost surely, 2^258672049 is an apocalyptic number.

It is an amenable number.

258672049 is a deficient number, since it is larger than the sum of its proper divisors (1).

258672049 is an equidigital number, since it uses as much as digits as its factorization.

258672049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 258672049 is about 16083.2847702203. The cubic root of 258672049 is about 637.1619524679.

The spelling of 258672049 in words is "two hundred fifty-eight million, six hundred seventy-two thousand, forty-nine".