258825461 has 2 divisors, whose sum is σ = 258825462. Its totient is φ = 258825460.

The previous prime is 258825449. The next prime is 258825499. The reversal of 258825461 is 164528852.

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., 185123236 + 73702225 = 13606^2 + 8585^2 .

It is a cyclic number.

It is not a de Polignac number, because 258825461 - 2¹⁰ = 258824437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258825421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129412730 + 129412731.

It is an arithmetic number, because the mean of its divisors is an integer number (129412731).

Almost surely, 2^258825461 is an apocalyptic number.

It is an amenable number.

258825461 is a deficient number, since it is larger than the sum of its proper divisors (1).

258825461 is an equidigital number, since it uses as much as digits as its factorization.

258825461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 41.

The square root of 258825461 is about 16088.0533626663. The cubic root of 258825461 is about 637.2878892441.

The spelling of 258825461 in words is "two hundred fifty-eight million, eight hundred twenty-five thousand, four hundred sixty-one".