258547049 has 2 divisors, whose sum is σ = 258547050. Its totient is φ = 258547048.

The previous prime is 258547043. The next prime is 258547061. The reversal of 258547049 is 940745852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173317225 + 85229824 = 13165^2 + 9232^2 .

It is a cyclic number.

It is not a de Polignac number, because 258547049 - 2⁸ = 258546793 is a prime.

It is not a weakly prime, because it can be changed into another prime (258547043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129273524 + 129273525.

It is an arithmetic number, because the mean of its divisors is an integer number (129273525).

Almost surely, 2^258547049 is an apocalyptic number.

It is an amenable number.

258547049 is a deficient number, since it is larger than the sum of its proper divisors (1).

258547049 is an equidigital number, since it uses as much as digits as its factorization.

258547049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 258547049 is about 16079.3982785426. The cubic root of 258547049 is about 637.0593024432.

The spelling of 258547049 in words is "two hundred fifty-eight million, five hundred forty-seven thousand, forty-nine".