258259061 has 2 divisors, whose sum is σ = 258259062. Its totient is φ = 258259060.

The previous prime is 258259051. The next prime is 258259063. The reversal of 258259061 is 160952852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258244900 + 14161 = 16070^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 258259061 - 2⁶ = 258258997 is a prime.

Together with 258259063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258259063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129129530 + 129129531.

It is an arithmetic number, because the mean of its divisors is an integer number (129129531).

Almost surely, 2^258259061 is an apocalyptic number.

It is an amenable number.

258259061 is a deficient number, since it is larger than the sum of its proper divisors (1).

258259061 is an equidigital number, since it uses as much as digits as its factorization.

258259061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 258259061 is about 16070.4405975692. The cubic root of 258259061 is about 636.8226806546.

The spelling of 258259061 in words is "two hundred fifty-eight million, two hundred fifty-nine thousand, sixty-one".